Relay Switching Board With Humidity Sensor

The Humidity-Sensitive Relay Module 5V can automatically control a load such as a fan or a misting pump according to the humidity level. The HR202 has a humidity sensor. It is an independent switching module that turns on or off a relay based on the humidity level. Just add 5V power, connect the load you want to control, and adjust the potentiometer to adjust the humidity level you want the relay to Decouple between ON/OFF.

It can be used for applications such as automatically turning on a fan when the humidity value rises above a preset level in a greenhouse or aquarium room, for example, or turning on a steam system for orchids when the humidity drops below a preset level.

Technical Features:

• Voltage: 5V/12V DC
• Current: More than 150mA
• Max load: 250V 10A DC or 30V 10A