LM393 Indicator Light 1 Channel Digital Humidity Sensor Relay Module

Features:

1. using high quality HR202 humidity sensor ;
2. the comparator outputs directly drive relays, or other devices connected to 220V AC ;
3. adjust the temperature distribution bit detection threshold
4. the sensor interface can be installed pin , plus humidity sensor with leads ;
5. circuit board external dimensions : 50x26mm, thickness 19mm, 3mm bolts with four holes for easy installation
Electrical parameters:
Supply voltage : 5VDC or 12VDC ( default hair 5V, please leave a message needs to 12V )
Current : more than 150mA
Maximum load : 250V 10A AC or 30V 10A DC , this power can be used by small
Module for use:
1. the humidity sensor most sensitive to environmental humidity is generally used to detect ambient humidity ;
2. the module in ambient humidity exceeds the set threshold, the relay , normally open end and connected to the public , when the outside ambient humidity is below the set threshold, the relay is switched off , the common and normally closed terminal connected ;
3. common, normally open , normally closed three ports is equivalent to a dual-control switch, relay coil power , often beginning with common terminal conduction, no electricity , the common and normally closed terminal conduction