PN: S1004 Introduction NO2 sensor is Nanotechnology based gas sensor with nanomaterial as sensing material, which can detect NO2 of different concentrations. Characteristic The sensor has the characteristics of Ultra-Low power consumption (working at room temperature) in addition to small Size, high sensitivity, low cost, fast response, high stability, long lifetime etc. Technical Parameters

Application: • Industry safe monitoring; • Automobile exhaust detector; • Mine air monitoring; • Environmental monitoring; • Deodorant Machine etc. Pin Assignment & Reference Circuit Note: The above figure is the basic test circuit of the S1004 sensor. Vout1 and Vout2 are the output voltages of the two channels of the sensor, respec

Figure5 In the figure, Rs represents the resistance value of the sensor in different concentrations of gas, and R 0 represents the resistance value of the sensor in clean air. All tests in the figure are completed under standard test conditions. Figure3: The sensitivity curve of sensors Figure4: The sensitivity of the sensor versus temperature Figure5: Stability test of sensors