Humidity sensor with HR202 sensor with humidistat function

Moisture sensor to detect and adjust the ambient humidity detection threshold.


Technical parameters:

- humidity sensor: HR202
- voltage comparator LM393
- digital output TTL with adjustable detection threshold (potentiometer)
- an active state is when the wolf value is lower than the threshold
- power 3.3-5VDC
- size 32×14mm

Connection:

- VCC - + power pole 3.3-5V
- GND - - power pole
- DO - TTL digital output

The product is not a self-functional unit, it requires professional assembly.