It is a Humidity Sensitive Switch Relay Module. The module uses a high-quality HR202 humidity sensor. The comparator output directly drives the relay to connect 220V AC or other equipment. With potentiometer to adjust the detection threshold. The sensor interface can be equipped with a pin and a wet sensor with a lead.
1 x Humidity Sensitive Switch Relay Module.
15 Days Warranty
This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Reimbursement or replacement will be done against manufacturing defects.
What voids warranty:
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.