Heat
To demonstrate the removal of heat during evaporation.
If you place a cup of water filled to the brim in front of a duck that is movably suspended in a frame and moisten its head, the duck will tilt its head into the glass.
As long as it can dip its beak in and moisten it, it will “drink”.
Bimetallic Switch with Tungsten Contacts
This essential educational tool for physics classes clearly demonstrates how thermal expansion transforms into mechanical movement to control electrical circuits.
Key Features and Specifications
- Premium Materials: The core consists of two welded strips of iron and nickel (Fe-Ni) for precise reactivity.
- Industrial Durability: Tough tungsten contacts resist wear and sparking, ensuring a long lifespan in school laboratories.
- Extreme Temperature Range: Safely operates from –50 to 450 °C, making it suitable for both freezing and open-flame experiments.
- High Visibility: Large strip dimensions (120 × 16 × 1 mm) ensure the bending effect is clearly visible from the back of the classroom.
- Safe Connections: Equipped with standard 4 mm safety sockets on a stable base for quick and secure wiring.
- Overall Dimensions: 120 × 90 × 90 mm.
Quick Experiment Ideas
- The Classic Thermostat: Heating the strip causes it to bend and open the contacts, automatically turning off a connected light bulb to mimic a real-world iron or kettle.
- Flashing Safety Light: Wiring a heat source into the circuit creates an automatic loop—the strip heats up, breaks the circuit, cools down, closes the circuit, and repeats.
- Extreme Cold Reactions: Utilizing the lower limit of –50 °C, cooling the strip with ice or a cooling spray causes it to bend in the opposite direction, proving unequal contraction.
To demonstrate how a bimetal thermometer works;
adheres to window panes, so the outside temperature can be easily read from the inside,
the bimetal spiral is clearly visible through the transparent back plate;
measuring range: -40 ... +50 °C,
diameter of the bimetal spiral: 20 mm,
disk diameter: 150 mm
200ml, heating 6V, heating element resistance 2...3 ohms. Aluminum shell d100mm x h100mm, aluminum container 70xd60mm inside. Insulated with polystyrene foam, heating elements with two 4mm pin sockets.
Small laboratory stove with power regulator. Heating plate d=80mm, base d=140mm, h=65mm. Power supply 230V, power 500W.
Single-zone tabletop stove
• Power: approx. 1500 W
• Hob: approx. 18.5 cm Ø
• Smooth temperature control
• Indicator light
• Dimensions: (W) 25 x (D) 29 x (H) 8.5 cm
Power supply 230V
3 cylindrical bodies with hooks, made of different materials. d=20mm, h=32mm.
The Gas Pressure Sensor can be used to monitor pressure changes in a gas. The range is wide enough to perform Boyle’s law yet it is sensitive enough to conduct vapor-pressure or pressure-temperature experiments. Biology teachers can use the Gas Pressure Sensor to monitor transpiration or respiration in an enclosed environment.
Measuring time: 0.5 sec., display of the current temperature, maximum and minimum temperature during the measurement, hold and lock function, measuring range: -33...+220 °C, switchable °C/°F, accuracy ± 1.5 °C from 0 ... 50°C, otherwise ± 2.0°C or 2%, including battery CR 2032 button cell 68 x 37 x 18 mm, 75 g
Measuring range -50…+500°C (-58 °F…+932 °F)
Material: Plastic
Power consumption: Batteries
Batteries included
Batteries: 2 x AAA 1.5 V
Dimensions: (L) 39 x (B) 110 x (H) 144 mm
Weight: 144 g
For determining the specific heat of water, the heat output and current, the electrical heat equivalent, the water value of a vessel, the heat capacities of liquid and solid substances and for converting electrical energy into thermal energy.
Consisting of 2 aluminum cups, an insulated container in between, transparent lid with immersion heater cascade 2 / 4 / 6 Ohm with four 4mm safety sockets, silicone stopper for inserting a thermometer and a simple stirrer
Supply voltage: 6 V
Filling volume: approx. 150 and 700 ml
Dimensions: D = approx. 100 (105) mm, H = approx. 120 mm (without stirrer)
Mass: approx. 228 g
h=290mm, d=40mm.
Ball and ring. If you heat the ball, it will no longer pass through the ring.
Collect temperature data directly through the USB port of a computer or Chromebook.
Specifications
- Range: -20°C – 115°C
- Maximum temperature that the sensor can tolerate without damage: 150°C
- Resolution: 0.07°C
- Accuracy: ± 0.5°C
- Response Time: 4s (to 90% of full reading in water)
To demonstrate the removal of heat during evaporation.
If you place a cup of water filled to the brim in front of a duck that is movably suspended in a frame and moisten its head, the duck will tilt its head into the glass.
As long as it can dip its beak in and moisten it, it will “drink”.
Bimetallic Switch with Tungsten Contacts
This essential educational tool for physics classes clearly demonstrates how thermal expansion transforms into mechanical movement to control electrical circuits.
Key Features and Specifications
- Premium Materials: The core consists of two welded strips of iron and nickel (Fe-Ni) for precise reactivity.
- Industrial Durability: Tough tungsten contacts resist wear and sparking, ensuring a long lifespan in school laboratories.
- Extreme Temperature Range: Safely operates from –50 to 450 °C, making it suitable for both freezing and open-flame experiments.
- High Visibility: Large strip dimensions (120 × 16 × 1 mm) ensure the bending effect is clearly visible from the back of the classroom.
- Safe Connections: Equipped with standard 4 mm safety sockets on a stable base for quick and secure wiring.
- Overall Dimensions: 120 × 90 × 90 mm.
Quick Experiment Ideas
- The Classic Thermostat: Heating the strip causes it to bend and open the contacts, automatically turning off a connected light bulb to mimic a real-world iron or kettle.
- Flashing Safety Light: Wiring a heat source into the circuit creates an automatic loop—the strip heats up, breaks the circuit, cools down, closes the circuit, and repeats.
- Extreme Cold Reactions: Utilizing the lower limit of –50 °C, cooling the strip with ice or a cooling spray causes it to bend in the opposite direction, proving unequal contraction.
To demonstrate how a bimetal thermometer works;
adheres to window panes, so the outside temperature can be easily read from the inside,
the bimetal spiral is clearly visible through the transparent back plate;
measuring range: -40 ... +50 °C,
diameter of the bimetal spiral: 20 mm,
disk diameter: 150 mm
200ml, heating 6V, heating element resistance 2...3 ohms. Aluminum shell d100mm x h100mm, aluminum container 70xd60mm inside. Insulated with polystyrene foam, heating elements with two 4mm pin sockets.
Small laboratory stove with power regulator. Heating plate d=80mm, base d=140mm, h=65mm. Power supply 230V, power 500W.
Single-zone tabletop stove
• Power: approx. 1500 W
• Hob: approx. 18.5 cm Ø
• Smooth temperature control
• Indicator light
• Dimensions: (W) 25 x (D) 29 x (H) 8.5 cm
Power supply 230V
3 cylindrical bodies with hooks, made of different materials. d=20mm, h=32mm.
The Gas Pressure Sensor can be used to monitor pressure changes in a gas. The range is wide enough to perform Boyle’s law yet it is sensitive enough to conduct vapor-pressure or pressure-temperature experiments. Biology teachers can use the Gas Pressure Sensor to monitor transpiration or respiration in an enclosed environment.
Measuring time: 0.5 sec., display of the current temperature, maximum and minimum temperature during the measurement, hold and lock function, measuring range: -33...+220 °C, switchable °C/°F, accuracy ± 1.5 °C from 0 ... 50°C, otherwise ± 2.0°C or 2%, including battery CR 2032 button cell 68 x 37 x 18 mm, 75 g
Measuring range -50…+500°C (-58 °F…+932 °F)
Material: Plastic
Power consumption: Batteries
Batteries included
Batteries: 2 x AAA 1.5 V
Dimensions: (L) 39 x (B) 110 x (H) 144 mm
Weight: 144 g
For determining the specific heat of water, the heat output and current, the electrical heat equivalent, the water value of a vessel, the heat capacities of liquid and solid substances and for converting electrical energy into thermal energy.
Consisting of 2 aluminum cups, an insulated container in between, transparent lid with immersion heater cascade 2 / 4 / 6 Ohm with four 4mm safety sockets, silicone stopper for inserting a thermometer and a simple stirrer
Supply voltage: 6 V
Filling volume: approx. 150 and 700 ml
Dimensions: D = approx. 100 (105) mm, H = approx. 120 mm (without stirrer)
Mass: approx. 228 g
Ball and ring. If you heat the ball, it will no longer pass through the ring.
Collect temperature data directly through the USB port of a computer or Chromebook.
Specifications
- Range: -20°C – 115°C
- Maximum temperature that the sensor can tolerate without damage: 150°C
- Resolution: 0.07°C
- Accuracy: ± 0.5°C
- Response Time: 4s (to 90% of full reading in water)