ITEM NAME:Relative Humidity Switch Module Sensor Controller Transducer C9W3 Relative Humidity Switch Module Sensor Controller Transducer C9W3 High quality HR202 humidity sensor; The comparator outputs directly drive relays, connected to 220V AC or other equipment; Adjust the temperature distribution position detection threshold Sensor interface can be installed pin, plus humidity sensor with leads; Circuit board dimensions are: 50x26mm, thickness 19mm, has four 3mm fixing bolt holes for easy installation Electrical Parameters: Supply voltage: 5V DC Current: more than 150mA Maximum load: 250V 10A AC or 30V 10A DC, this power can be used by small Material: metal Color:blue Package included: 1 pcs Relative Humidity Switch Module Sensor Humidity Controller for Arduino Note: Light shooting 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.