1. Adopt HR202 Humidity Sensor; 2. The Comparator Output Directly Drives The Relay And Is Connected To 220V AC Or Other Equipment; 3. The Distribution Potentiometer Adjusts The Temperature Detection Threshold; 4. The Sensor Connection Can Be Equipped With Pin Headers And Lead Wires For Humidity Sensors; 5. The Overall Dimensions Of The Circuit Board Are: 50x26mm, With 4 Fixing Holes; Humidity Detection, Humidity Sensor, Environmental Humidity Detection, With Relay Output, Which Can Directly Control The Power Supply Of Related Equipment.<br><br>Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Supply Voltage: (Default 5V) Current: 150MA Load: AC 250V 10A Or DC 30V 10A, This Power Can Be Used Colour:As Shown Material:PCB<br><br>Package Contents: 1x Humidity Switch Module<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.