The Go Direct 3-Axis Magnetic Field Sensor measures the components of the magnetic field along three orthogonal axes. This allows you to determine the magnitude and direction of the magnetic field at any point in space. If desired, measure the field along only two axes, or even one axis, choosing the direction that is best for the experiment.

The Go Direct 3-Axis Magnetic Field Sensor can be used in a variety of experiments:

• Quantify the magnetic field strength of induced magnets.
• Determine the declination and inclination of the Earth’s magnetic field at your location using vector components.
• Investigate the relationship between magnetic field strength, coils per unit length, and current in the center of a solenoid.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

This 3-axis acceleration sensor has two acceleration ranges plus an altimeter and a 3-axis gyroscope. An additional channel measures the angle of the sensor’s long axis.

• Measure helmet impacts in concussion-related investigations.
• Slip it into your pocket and pirouette or ride a half-pipe.
• Mount this accelerometer on your bicycle or affix it to your lab cart without any dragging cables.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Go Direct® Air Quality Sensor

The Go Direct Air Quality Sensor helps students investigate real‑world questions about the quality of the air we breathe with measurable evidence—right where they live and learn.

Designed for high school and college use, this durable sensor supports indoor and outdoor monitoring so students can track pollutants over time, analyze spatial patterns, and connect air quality to human and ecological health.

Make air quality tangible, local, and measurable for students.The Go Direct Air Quality Sensor transforms air quality from an abstract concept into measurable evidence in a classroom-ready form. It equips educators and students with the tools needed to investigate pollution scientifically, think systemically, and understand how environmental conditions directly affect human and ecological health—right where they live and learn.

Includes 3 AP- and NGSS-Aligned Lessons

• Using the Sensor: Learn different channels, remote data collection, and basic analysis.
• Indoor Air Quality Investigation: Analyze indoor air quality data and develop recommendations to improve it.
• Traffic and Outdoor Air Quality: Investigate how vehicle traffic affects air pollution.

Extended Investigation Ideas

• Compare indoor and outdoor air quality.
• Monitor particulate matter near roads, parking lots, or green spaces.
• Analyze air quality changes during traffic peaks or daily weather shifts.
• Observe ozone trends on sunny vs. cloudy days.
• Investigate how different types of cooktops affect CO2 and PM levels.

Measures Key Air Pollutants

• Particulate Matter (PM1, PM2.5, and PM10)
• Ground-Level Ozone (O3)
• Nitrogen Dioxide (NO2)
• Sulfur Dioxide (SO2)
• Carbon Dioxide (CO2)
• Volatile Organic Compound Index (VOC Index)

Measures Environmental Conditions

• Temperature
• Relative Humidity
• Barometric and Station Pressure

Key Features

• Real-time air quality data collection via Bluetooth^® wireless technology
• Remote data logging for long-term or remote investigations, no connection required
• Integrated Global Navigation Satellite System (GNSS) allows for geotagging
• Durable for indoor and outdoor use

Remote Data Logging—Go Beyond Wireless Limits!

This Go Direct sensor is capable of remote data logging! This feature allows sensors to store data directly to their internal memory—ideal for investigations that extend beyond typical connection ranges like long-term environmental monitoring or rocket launches. It works seamlessly with our award-winning Vernier Graphical Analysis^® app so students can visualize their data and make key connections between abstract science concepts and real-world phenomena. Learn more about remote data logging.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

Go Direct Air Quality has the following channels

• PM1.0
• PM2.5
• PM10
• CO2
• NO2
• SO2
• O3
• VOC Index
• Temperature
• Relative Humidity
• Barometric Pressure
• Station Pressure
• Latitude
• Longitude
• Altitude

Specifications

• PM Mass Concentration Specified Range: 0–1000 µg/m³
  • PM1 size range: 0.3–1µg
  • PM2.5 size range: 0.3–2.5µg
  • PM10 size range: 0.3–10µg
• CO2 Range: 0–5,000 ppm
• NO2 Range: 0-2000ppb
• SO2 Range: 0-2000ppb
• O3 Range: 0-2000ppb
• VOC Index: 1–500
• Temperature Range: 10–40℃ (-10℃ min, 50℃ max short term)
• Relative Humidity Range: 20–80% (10% min, 90% max short term)
• Station Pressure Range: 260–1260hPa
• Maximum sampling rate: 1 sample/s

Go Direct^® Constant Current System

The Go Direct Constant Current System is a DC power source with a built-in current probe designed for use in electrochemistry experiments. It connects via Bluetooth® wireless technology or via USB to your device.

Use the Go Direct Constant Current System to determine Avogadro’s number and perform various electroplating and electrolysis experiments. This system combines a DC power source with a built-in current sensor to eliminate the need for a separate power supply, and it can deliver up to 0.6 A at 5 V DC. Voltage settings are automatically adjusted to complement the chosen current setting.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Interested in doing more advanced electrochemistry experiments? Check out our Go Direct Cyclic Voltammetry System.

Specifications

• Range: 0 to 0.6 A
• Supply voltage: 5 VDC
• Connections:
  • Wireless: Bluetooth
  • Wired: USB

Give your students hands-on experience with electrochemical reactions using this affordable potentiostat and disposable screen-printed electrodes. The Go Direct Cyclic Voltammetry System is simple to use, includes free experiments in a downloadable e-book, and is supported by the free Vernier Instrumental Analysis^® app.

With the Go Direct Cyclic Voltammetry System, developed in part with Pine Research (specialists in electrochemical research instrumentation), students can easily control and apply potential to a chemical system and measure the response as electrical current. Students can apply analytical techniques, such as cyclic voltammetry or bulk electrolysis, to determine the acetaminophen concentration in medication, to explore antioxidants in everyday beverages, to investigate Faraday’s law, and to understand cyclic voltammetry. Easily incorporate electrochemistry into your curriculum using our e-book Electrochemistry Experiments with the Go Direct Cyclic Voltammetry System available for free with your purchase.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wired or Wireless—The Flexibility to Choose

Go Direct Cyclic Voltammetry System connects directly to your mobile device, Chromebook™, or computer using our free Vernier Instrumental Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the solution best for your laboratory.

Specifications

Data Collection Modes

• Cyclic Voltammetry
• Bulk Electrolysis
• Open Circuit Potential

Potential Range

Operational range: –2000 to +2000 mV
Practical range*: –1200 to +1200 mV

*This range limit applies when using Vernier screen-printed electrodes in aqueous solutions. Results may vary when using other electrodes and solvents.

Current Ranges

• High (± 1000 μA)
• Medium (± 100 μA)
• Low (± 10 μA)
• Lowest (± 1 μA)

Dimensions

9 cm x 6 cm x 3 cm

Power

Internal rechargeable battery or USB connection

Connections

• Wireless: Bluetooth^® wireless technology
• Wired: USB

The Go Direct Electrode Amplifier is a mV and pH amplifier that connects to Vernier electrodes and compatible third-party BNC electrodes. It connects via Bluetooth® wireless technology or via USB to your device.

The Go Direct Electrode Amplifier offers an affordable way to expand your experiment options. Its BNC connector provides the flexibility to attach and remove a Vernier electrode, such as the pH Electrode, Flat pH Electrode, ORP Electrode, ISE electrode, or a third-party electrode. You can explore pH one day and potassium concentrations the next.

Because the Go Direct Electrode Amplifier is compatible with third-party electrodes, students learn consistent calibration and handling techniques on one amplifier using one software program. When electrodes expire or become damaged you need only replace the electrode—lowering your overall equipment costs.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• Units: pH or mV
• Input range (mV): ±1000 mV
• Input range (pH): 0 to 14 pH
• Accuracy with new electrode (mV): ±20 mV
• Accuracy with new electrode (pH): ±0.2
• Connections:
  • Wireless: Bluetooth
  • Wired: USB

Specifications

• Force: ±50 N
• Acceleration: 3 axis, ±16 g
• Gyroscope: 3 axis, 2000°/s
• Connections:
  • Wireless: Bluetooth
  • Wired: USB

Use the Go Direct 2-Axis Force Plate to measure both the lateral and normal forces developed during investigations involving friction, stepping, jumping, and other human-scale actions.

The Go Direct 2-Axis Force Plate is an all-in-one solution that combines the Go Direct Force Plate and the Lateral Force Accessory into a single wireless tool. It measures both normal and lateral forces, allowing students to explore more complex force interactions beyond single-axis analysis. This expanded capability makes it ideal for studying real-world applications in advanced high school and college-level physics and engineering courses.

Use the Go Direct 2-Axis to perform the following kinds of experiments:

• Evaluation and analysis of normal force and friction forces
• Analysis of reaction forces of static systems
• Evaluation of vector components of forces
• Investigation of forces involved in biomechanics of walking, running, and jumping

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis® app, as well as LabQuest® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook™, or computer using our Vernier Graphical Analysis® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the best solution for your classroom or laboratory

Specifications

Normal Force

• Force range: –350 to +3500 N where positive value is a compression force
• Maximum non-damaging force: 4500 N (1000 lbs) compression

Lateral Force

• Force range: –2000 to +2000 N
• Maximum non-damaging force: 2500 N (560 lbs)

Dimensions: 31.5 cm x 31.5 cm x 6.5 cm

Collect data on forces developed during stepping, jumping, and other human-scale actions.

Designed for much greater forces than the Dual-Range Force or Go Direct Force and Acceleration sensors, the Go Direct Force Plate can measure the forces developed during stepping, jumping, and other human-scale actions. For example, you can perform the following kinds of experiments:

• Observe the change in normal force during an elevator ride.
• Measure the impulse delivered by the floor during a jump.
• Measure the reaction force as a student leans against a wall.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• Force range: –350 to +3500 N
• Maximum non-damaging force: 4500 N (1000 lb) compression
• Typical resolution: 1 N
• Dimensions: 31.5 cm x 31.5 cm x 3.5 cm

Use Go Direct Gas Pressure Sensor to monitor gas pressure in a variety of experiments. It records accurate absolute pressure readings relative to the perfect vacuum reference point inside the sensor, allowing you to go below atmospheric pressure or up to 400 kPa. Easily change the displayed units to any one of seven options (kPa, mmHg, inHg, mbar, psi, atm, torr). Includes a syringe, tubing, and stoppers to ease setup for experiments such as Boyle’s law.

The Go Direct Gas Pressure Sensor can be used in a variety of experiments:

• Investigate Boyle’s law and Charles’ law.
• Investigate grip strength and muscle fatigue (using Gas Pressure Bulb, not included).
• Measure the production of oxygen gas produced when hydrogen peroxide is destroyed by the enzyme catalase.
• Monitor plant transpiration.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

The Go Direct Melt Station accurately determines the melting temperature of solid substances. It connects via Bluetooth® wireless technology or via USB to your device.

Teach students the visual detection capillary method of melting point determination with the Go Direct Melt Station. It accurately measures melting temperatures of a solid (up to 260°C), and the real-time graphing provides a unique perspective of the melting process.

The wide-angle observation and magnification window, LED-lit heater block, and adjustable tilt base give students a clear view of the substance as they witness the state change. Internal cooling fans reduce the waiting time between sample testing. Also included is an important safety feature that automatically powers down the heating block after 60 minutes with no change to the control knob.

The Go Direct Melt Station can be used in a variety of experiments:

• Determine the melting temperature of an known organic solid such as aspirin, ibuprofen, or caffeine.
• Identify an unknown organic solid by its melting temperature.
• Use melting temperature to analyze reaction products.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• Dimensions:
  • Base: 13 cm × 15 cm × 1.5 cm
  • Body: 9 cm × 9 cm × 24 cm
• Weight: 1.0 kg (2.2 lbs)
• Range: Ambient to 260°C
• Resolution: 0.10°C
• Accuracy: ±0.31 + 0.0006T, where T is the temperature in Celsius
• Safety shut down: The heating block is automatically powered down after approximately 60 minutes of heating.
• Capillary tubes: 1.4–1.8 mm outside diameter, 100 mm length
• Capillary tube slots: 3
• Viewing lens: 27 mm diameter (functional), 30 mm (actual)
• Lighting of capillary slots: 3 white LEDs
• Lighting of control dial:
  • Red LED (indicates heating mode)
  • Blue LED (indicates cooling mode with cooling fan running)
  • Yellow LED (safety shut off activated)
• Connections:
  • Wireless: Bluetooth
  • Wired: USB

Specifications

• Range: 15 cm to 3.5 m
• Resolution: 1 mm
• Maximum sampling rate: 30 samples/s
• Connections:
  • Wireless: Bluetooth
  • Wired: USB

Using Go Direct Photogate, students are able to easily and accurately measure velocity and acceleration to study the movement of an object in free fall, rolling objects, collisions, and pendulums, without needing to know anything about the geometry of the object.

Go Direct Photogate also includes a single laser gate for use with objects passing outside of the arms of the sensor. Using the laser gate requires a visible-light pen laser (not included).

Go Direct Photogate can be used in a variety of experiments:

• Measuring acceleration of a cart on an incline using a cart picket fence
• Measuring the angular motion of a wheel as it is turning
• Investigating Newton’s second law using a half-Atwood machine to measure acceleration
• Determining the time an object passes one or more gates

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

The Go Direct PAR Sensor reports the Photosynthetic Photon Flux Density (PPFD), which corresponds to micromoles of photons per meter squared per second (μmol m^-2 s^-1). This is the power of electromagnetic radiation in the spectral range that is used by plants for photosynthesis. It features a waterproof sensor head and can be used to measure PPFD from sunlight and electric light sources. This sensor is ideal for experiments investigating photosynthesis and primary productivity and can be used in many agricultural and environmental science applications.

Remote Data Logging—Go Beyond Wireless Limits!

This Go Direct sensor is capable of remote data logging! This feature allows sensors to store data directly to their internal memory—ideal for investigations that extend beyond typical connection ranges like long-term environmental monitoring or rocket launches. It works seamlessly with our award-winning Vernier Graphical Analysis^® app so students can visualize their data and make key connections between abstract science concepts and real-world phenomena. Learn more about remote data logging.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• PAR Range: 0 to 2500 μmol m^-2 s^-1PPFD) in full sun
• Absolute Accuracy: ±5%
• Repeatability: ±1%
• Long-Term Drift: Less than 2% per year
• Cosine Response:
  • 45° zenith angle: ±2%
  • 75° zenith angle: ±5%
• Wavelength range: 370 nm to 650 nm
• Typical Resolution: 1 μmol m^-2 s^-1 (PPFD)
• Sensor dimensions:
  • Diameter: 2.4 cm
  • Height: 3.3 cm
  • Cable Length: 5 m
• Materials: Anodized aluminum with cast acrylic lens

The concept of chirality can be difficult for students to visualize. Go Direct Polarimeter provides a visual representation of this concept by measuring the optical rotation of optical isomers such as sugars, amino acids, and proteins. The Go Direct Polarimeter is simple to use, includes free, downloadable experiments, and is supported by the free Vernier Instrumental Analysis^® app.

Its unique vertical layout and lack of custom glassware make this polarimeter very student friendly. In addition, the analyzer is automatically rotated by an internal motor giving students more time to understand experiments such as the reaction kinetics of HCl and sucrose. The 589 nm LED makes it ideal for comparing optical rotation values to those in literature, allowing students to calculate specific rotation for sucrose, fructose, and other optically active samples. Students no longer have to determine the optical maximum with their eye—they now have a graph that shows a clear change in the light’s polarization.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wired or Wireless—The Flexibility to Choose

Go Direct Polarimeter connects directly to your mobile device, Chromebook™, or computer using our free Vernier Instrumental Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors connect via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the best solution for your laboratory.

Specifications

• Light source: LED
• Wavelength (nominal): 589 nm
• Accuracy (optical rotation measurements): ±1°

The Go Direct Pyranometer measures the power of electromagnetic radiation. It is sensitive to near infrared, visible, and UV radiation, where 90% of solar energy is concentrated. It reads in watts per square meter, so it is great for experiments with solar cells and calculating their efficiency.

It has a weatherproof sensor head with a dome-shape top to allow it to handle a wide range of sun angles.

Remote Data Logging—Go Beyond Wireless Limits!

This Go Direct sensor is capable of remote data logging! This feature allows sensors to store data directly to their internal memory—ideal for investigations that extend beyond typical connection ranges like long-term environmental monitoring or rocket launches. It works seamlessly with our award-winning Vernier Graphical Analysis^® app so students can visualize their data and make key connections between abstract science concepts and real-world phenomena. Learn more about remote data logging.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• Irradiance Range: 0 to 1100 watts/m² (in full sun)
• Absolute Accuracy: ±5%
• Repeatability: ±1%
• Long-Term Drift: Less than 3% per year
• Cosine Response:
  • 45° zenith angle: 1%
  • 75° zenith angle: ±5%
• Wavelength range: 360 nm to 1120 nm
• Typical Resolution: 0.3 Watts/m²
• Sensor dimensions:
  • Diameter: 2.4 cm
  • Height: 3.3 cm
  • Cable Length: 5 m
• Materials: Anodized aluminum with cast acrylic lens

Specifications

• Sensor: LND 712 (or equivalent) halogen-quenched GM tube with a mica end window, 1.5 to 2.0 mg/cm² thick
• Sensitive to alpha, beta, gamma, and X-ray radiation
• Powered by rechargeable 300 mAh battery, recharged via USB cable
• Red LED blinks on radiation detection
• Optional audio signal on radiation detection
• Connections:
  • Wireless: Bluetooth
  • Wired: USB

The Go Direct Salinity Sensor easily and precisely measures the total dissolved salt content in an aqueous solution. You have the ability to measure temperature-compensated salinity or non-temperature-compensated salinity, along with temperature. Measure water with a wide variety of salinities, from brackish water to ocean water, and even hyper-saline environments. You can also study how salinity affects buoyancy or monitor salinity values in estuaries where freshwater mixes with ocean water.

It features a built-in temperature sensor to simultaneously read salinity and temperature. Automatic temperature compensation allows students to calibrate the probe in the lab and then make measurements outdoors without temperature changes affecting data. This temperature compensation can be turned off to perform salinity studies as a function of temperature.

Remote Data Logging—Go Beyond Wireless Limits!

This Go Direct sensor is capable ofremote data logging! This feature allows sensors to store data directly to their internal memory—ideal for investigations that extend beyond typical connection ranges like long-term environmental monitoring or rocket launches. It works seamlessly with our award-winning Vernier Graphical Analysis^®app so students can visualize their data and make key connections between abstract science concepts and real-world phenomena. Learn more atvernier.com/remote-logging!

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• Range of Salinity Sensor: 0 to 50 ppt (0 to 50,000 ppm)
• Accuracy (factory calibration):
  • +/-1.5 ppt below 35 ppt
  • +/-5.0 ppt above 35 ppt
• Accuracy (user calibration):
  • +/- 0.5 ppt within user-calibrated range
• Temperature compensation: automatic from 5 to 35°C, can be turned off
• Temperature range (can be placed in): 0 to 80°C
• Description: dip type, abs body, parallel graphite electrodes
• Dimensions: 12 mm OD and 150 mm length

The Go Direct Soil Moisture Sensor is used to measure the volumetric water content of soil. This makes it ideal for performing experiments in courses such as soil science, agricultural science, environmental science, horticulture, botany, and biology. This probe connects via Bluetooth^® wireless technology or via USB to your device.

The Go Direct Soil Moisture Sensor uses capacitance to measure the water content of soil (by measuring the dielectric permittivity of the soil, which is a function of the water content). Simply insert this rugged sensor into the soil to be tested, and the volumetric water content of the soil is reported in percent.

Remote Data Logging—Go Beyond Wireless Limits!

This Go Direct sensor is capable of remote data logging! This feature allows sensors to store data directly to their internal memory—ideal for investigations that extend beyond typical connection ranges like long-term environmental monitoring or rocket launches. It works seamlessly with our award-winning Vernier Graphical Analysis^® app so students can visualize their data and make key connections between abstract science concepts and real-world phenomena. Learn more about remote data logging.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• Range: 0 to 45% volumetric water content in soil
• Operating temperature: –40°C to +60°C
• Dimensions: 8.9 cm × 1.8 cm × 0.7 cm (active sensor length 5 cm)

The Go Direct Sound Sensor is used to easily capture and evaluate waveforms. It connects via Bluetooth^® wireless technology or via USB to your device.

Specifications

• Response: A- or C-weighted
• Range: 55–110 dB
• Accuracy: ±3 dB
• Resolution: 0.1 dB
• Sound Level Frequency Range: 30–10,000 Hz
• Microphone Level Frequency Range: 100 Hz to 15 kHz
• Typical Max Frequency: 10,000 Hz
• Connections
  • Wireless: Bluetooth
  • Wired: USB

The Go Direct Temperature Probe is a rugged, general-purpose sensor that students can use to monitor temperature. It connects via Bluetooth^® wireless technology or via USB to your device.

Specifications

• Range: –40 to 125°C
• Handle range: –10 to 45°C
• Resolution: 0.01°C
• Accuracy: ±0.25°C
• Response time (time for 90% of reading): 20 seconds (in water, with stirring)
• Connections:
  • Wireless: Bluetooth
  • Wired: USB

The Go Direct^® Emissions Spectrometer enables students to conduct emissions analysis; measure spectra of light-emitting samples in the range of 350 to 950 nm; and examine emissions spectra of light bulbs, spectrum tubes, or the sun.

• Dimensions: 10.1 cm × 7.0 cm × 4.5 cm
• Power supply: USB powered
• Detector: Linear CCD
• Wavelength range: 350–900 nm
• Wavelength reporting interval: 1 nm
• Optical resolution: 3.0 nm (as determined by the full width of half maximum of hydrogen 434 nm peak)
• Wavelength accuracy: ±2 nm (as determined by hydrogen peaks)

Go Direct Weather System includes an affordable, wireless handheld sensor used to measure ambient temperature, humidity, wind speed, wind chill, dew point, barometric pressure, and more. The included Go Direct Weather Vane accessory is required to report wind direction. Mounting Go Direct Weather System on a tripod is recommended (tripod not included).

Remote Data Logging—Go Beyond Wireless Limits!

This Go Direct sensor is capable of remote data logging! This feature allows sensors to store data directly to their internal memory—ideal for investigations that extend beyond typical connection ranges like long-term environmental monitoring or rocket launches. It works seamlessly with our award-winning Vernier Graphical Analysis^® app so students can visualize their data and make key connections between abstract science concepts and real-world phenomena.

Specifications

Channels

Go Direct Weather has the following measurement channels:

• Wind Speed
• Wind Direction
• Wind Chill
• Temperature
• Heat Index
• Dew Point
• Relative Humidity
• Absolute Humidity
• Station Pressure
• Barometric Pressure
• Altitude

Specifications

• Wind speed range: 0–30 m/s
• Temperature range: –40 to 120°C
• Temperature accuracy: ±0.2°C
• Humidity range: 0–100%
• Humidity accuracy: ±2%
• Absolute pressure range: 260–1260 mbar
• Absolute pressure accuracy: ±0.2 mbar
• Maximum sampling rate: 2 sample/s
• Maximum wireless range: 30 m (unobstructed)