Humidity Sensitive Switch Relay Module is a premium quality Humidity & Temperature Sensor Module with a relay. The module uses a high-quality HR202 humidity sensor. The comparator output directly drives the relay to connect 220V AC or other equipment. With a potentiometer to adjust the detection threshold. The sensor interface can be equipped with a pin and a wet sensor with a lead.
Features:
Adopt a superior HR202 humidity sensor
Comparator output drives the relay directly and connects with 220V AC or other equipment
Equipped with the potentiometer to control temperature detection threshold
The interface of the sensor can install PIN header connector, add moisture sensor with lead wire
With relay output, this module is used to detect the humidity and control related the device power directly.
This product make use of HR202 humidity sensor.
The comparator outputs drive relays directly. It connects to 220V AC or other devices.
With leads, sensor interface can be installed with pin.
It’s easy to install with 4 0.3cm fixing bolt hole.
When ambient humidity exceeds the setting threshold value the relay sucks and shuts, what’s more, the common terminal connects to the start.
If the ambient humidity below the setting threshold value, the situation will be counter.
Common, normally open and normally closed the three ports are equivalent to a dual-control switch.
When the relay coil is electrified, the common will connect to the normally open, otherwise, the common will connect to normally closed.
