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