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HiLetgo 2pcs HR202 Humidity Sensor Relay Switch Humidity Control Switch DC 5V 1 Channel Humidity Sensor Relay Module for Arduino
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About HiLetgo 2pcs HR202 Humidity Sensor Relay Switch
Application: For ambient humidity detection,high quality humidity sensor with relay output to direct control of related equipment power Parameters: Supply Voltage: 5VDC； Maximum Load: 250V/10A AC or 30V/10A DC,or less than this power Module Instructions: *Humidity sensor is most sensitive to environmental humidity,generally used to detect the ambient humidity; *2)The relays pull in,so the common end and normally open end connect when the ambient humidity exceeds the set threshold;The relays break off,so the common end and normally closed end connect when the ambient humidity is below the set threshold 3)Common end,normally open end & normally closed end is equivalent to a dualcontrol switch.The common end and the normally open connect when the relay live electricity ;the common end and normally closed end connect when the relay is out of electricity. Package Included: 2*Humidity Sensor Switch Relay Module
