Range : N/A
Accuracy : ±2m

The positioning function in GPS sensor, can find the georeferenced of experimental location, the error of positioning accuracy is no less than 2m, and can record the moving tracks of position. We also can use the GPS sensor to record different experimental location, to explore the differences of experiment in different area.

Ambient Temperature
Range : -10~+85℃
Accuracy : ±1℃

For measuring the ambient temperature, especially for some experiments have huge effect that produced by temperature, can according the current temperature to adjust a right environment for the experiment. Furthermore, can also used to monitor the change of air temperature throughout the day.

Range : 50~110kPa
Accuracy : ±4kPa (relative accuracy: 0.05kPa)

For measuring the atmospheric pressure of the surrounding environment, can sensitively reflect the changes of atmospheric pressure due to the change of elevation. In the experiment, it is helpful for analyze the effects of atmospheric pressure on experiment, to make the experiment more accurate and more scientific.

Air Pressure Sensor
Range : 0~400kPa
Accuracy : ±6kPa

Air pressure sensor is used to measure the absolute pressure of air, it is connected with the exterior air under measurement by a hose at the front side, whereas the hose and the sealed vacuum reference cavity inside the sensor forms a pressure difference; after the pressure difference is converted into a voltage signal, its output voltage forms a direct proportion to the absolute pressure.

Typical Experiment
  • Boyle's Law
  • Charles' Law
  • Study the relation between liquid boiling point and pressure
Conductivity Sensor
Range : 0~20000μs/cm
Accuracy : ±4%

The conductivity sensor is used to measure the conductivity of solution and its change. It could’t distinguish the category of solution’s ions, but can determine the total ionic concentration of solution.

Typical Experiment
  • Comparison on the conductivity of different water
  • Reaction of phenol and saturated bromine water
  • Study on the purity of drinking water
  • Relation between cell size and material transport
Light Sensor
Range : 0~55000lux
Accuracy : ±5%

Light sensor uses the silicon photoelectric cell as the sensing element; it can convert the light intensity into a voltage signal, keeping a direct proportion. For the sensor, the effective light spectrum is in a range of 380nm and 730nm, it is an ideal intensity sensor for visible light.

Typical Experiment
  • Study the relation between illumination intensity and distance
  • Study the diffraction, interference, polarization of light
Temperature Sensor
Range : -40℃~+135℃
Accuracy : ±0.5℃

Temperature sensor adopts the NTC electronic temperature sensing element, when the ambient temperature changes, the NTC resistance changes accordingly. Normally the temperature needs no zero calibration and with relatively higher stability; therefore, the temperature sensor is rather popular in the low-middle temperature measurements.

Typical Experiment
  • Cooling water naturally
  • Liquid's evaporation cooling
  • Work-to-internal energy conversion
  • Study the thermoelectricity phenomena
  • The convex lens convergence effect
Heart Rate Sensor
Range : 0~200bpm
Accuracy : ±1

Heart rate sensor is an experiment device used to detect the heart rate of human body. Simple and safe operation, can real-time measure the human heart rate value.

Typical Experiment
  • Test on human heart rate
Relative Humidity Sensor
Range : 0~100%
Accuracy : ±4%(10%~90%RH)

The relative humidity sensor is designed based on the sensitive humidity prototype, namely a polymer capacitance, and its capacitance will vary with the environmental humidity. The humidity sensor is designed to monitor the relative humidity of air.

Typical Experiment
  • Measurement on the change of environmental humidity
  • Hydroscopicity of the concentrated sulfuric acid
  • Design and make an ecological cylinder and observe its stability
pH Sensor
Range : 0~14
Accuracy : ±0.2pH

The pH electrode composes of an internal reference electrode and an glass electrode. It is mainly used to measure the hydrogen ion concentration of a solution and show the pH value of the solution.

Typical Experiment
  • Acid-base neutralization titration
  • pH value of different solutions
  • Acidity of phenol
  • Mechanism of organism for maintaining pH stability
  • Study on impact of pH value on pectinase activity
Thermocouple Sensor
Range : -200~1200℃
Accuracy : ±6(-200~0℃) ±3(0~200℃) ±6(200~1200℃)

The thermocouple sensor can be used to measure higher temperature. In the physical and chemical experiment of middle school (detecting the melting point of crystal and temperature of chemical reaction), it can measure the temperature of flame directly, there is no need to worry about whether the cable could be damaged by high temperature.

Typical Experiment
  • Study on the melting point of crystal
  • Measurement on temperature of flame
  • Liquid cooling via evaporation
  • Study on the thermoelectricity phenomenon
  • Study on temperature change law when a solid melts
Dissovled Oxygen Sensor
Range : 0~100%
Accuracy : ±0.1mg/L

The probe of the dissolved oxygen sensor works as per the polarogram measurement principle. The probe electrode composes of the anode, cathode and membrane. When is usage, immerse the electrode into the solution and apply the electric potential between the anode and the cathode to generate the electrochemical reaction.

Typical Experiment
  • Study the breathing way of saccharomycetes
  • Study the dissolved oxygen of different water
  • Factors that affect plant photosynthesis