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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
Sensitive material of MQ137 gas sensor is SnO2
Works with phones
Short-circuit protection
Compatible with many older electronic devices
The Coin is 30mm diameter made of PVC
Vibration Sensor Module (801S) limit switch Sensitive material of MQ137 gasThe vibration sensor is based on 801S sensing element. This vibration sensor operates in any direction and is extremely sensitive to any type of movement or vibration (very small shock). The module output is normally low and outputs a series of random high pulses when a vibration or shock is detected. The vibration sensor uses resistive element that changes resistance with motion. The on board LED is normally ON and goes OFF momentarily or appears to
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