The Metal Touch Sensor Module utilizes a floating lead on a Darlington transistor to detect a touch. There are 2 LEDs on-board. A red LED lights when power is applied. A green or red LED lights when a touch is detected.
Technical Specifications
- Main chip: LM393
- Working voltage(V): 5
- PCB Color: Red
- Length(mm): 43
- Width(mm): 16
- Height(mm): 15
- Weight(g): 4
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MQ-135 Air Quality Sensor
- High sensitivity to Ammonia, Sulphide and Benzes
- Stable and Long Life
- Detection Range: 10 – 300 ppm NH3, 10 – 1000 ppm Benzene, 10 – 300 Alcohol
- Heater Voltage: 5 V
- Dimensions: 18 mm Diameter, 17 mm High excluding pins,Pins – 6 mm High
- Long life and low cost
- Domestic air pollution detector
- Industrial air pollution detector
- Portable air pollution detector
SKU: STEM18077
