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.
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MQ-4 Methane Natural Gas Sensor
- Good sensitivity to Combustible gas in wide range
- High sensitivity to CH4, Natural gas
- Small sensitivity to alcohol, smoke
- Oxygen concentration: 21%(standard condition)
- Wide detection range
- Port explanation : DO for digital output, AO for analog output
SKU: STEM18072
