Moisture-sensitive switch relay module

Detailed Description:

Humidity detection, humidity sensors, environment humidity detection, with relay output, direct control related equipment power

Automatic control temperature, lower than the temperature start, or higher than the temperature start, choose on the output side is higher than the set temperature activated for normally open, pick up normally closed is lower than the set temperature start

The module features:

1. USES the high quality HR202 wet sensor;
2. comparator output direct drive relay, connect 220 v ac or other equipment;
3. match potentiometer adjust temperature detection threshold
4. sensor interface can hold row needles, add with lead wet sensor;
5. PCB physical size for: 50 x26mm, thick 19 mm, there are four 3 mm fixed bolt hole, convenient installation

Electrical parameters:

The power supply voltage: 5 VDC (default hair 5 v current: more than 150 ma
Maximum load: 250 v and a communication or 30 v 10 a dc, less than the power all can be used

Module USES description:

1. wet sensor is the most sensitive to environment humidity, generally used to detect the surrounding environment humidity;
2. module in the environmental humidity more than setting threshold value, relay suction close, public end and often start on, when the outside environment humidity below the setting threshold, relay disconnect, public end and often closed end on;
3. public end, often open, normally closed three port is equivalent to a double switch, relay coil have electric, public end and often start conducting, no power, public end and often closed end conduction;