
Carbon monoxide sensor detects threshold exceedance with indicator light and high/low signal outputs. Operates at 5-24V, user-friendly design, fixed 20ppm threshold.
Positive DC supply input for the sold carbon-monoxide threshold alarm sensor. DFRobot states 5-24V DC operation.
Power and signal ground return for the sensor connection port/cable.
Threshold alarm output signal. DFRobot specifies High=5-24V when CO exceeds the fixed 20ppm danger threshold and Low=0V when safe.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| V+ | power | Positive DC supply input for the sold carbon-monoxide threshold alarm sensor. DFRobot states 5-24V DC operation. |
5-24V DC · 0V
Verify supply voltage and logic levels before powering up.
Module pins: V+, GND. Schematik maps them to your board in the app.
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| 5-24V DC |
| GND | ground | Power and signal ground return for the sensor connection port/cable. | 0V |
| OUT | digital | Threshold alarm output signal. DFRobot specifies High=5-24V when CO exceeds the fixed 20ppm danger threshold and Low=0V when safe. | High=5-24V, Low=0V |