Application :it is suitable for granary ,warehouse, computer room ,farm, incubation room, textile industry and other heating /cooling humidification / dehumidification placeOutdoor terminal box, power distribution box (automatic heating and dehumidification), prevent creepage caused by a of misoperation accidentautomatic heating and dehumidification high-voltage power distribution unit and the high-pressure switch mechanism box indoor, automatic heating in low environment, prevent switch to stopping working because of low temperatureFeatures:Display temperature and humidity,you can use different model to control output of the change of temperature and humidity, and the function of RS485.High-performance, high-precision, durable,Temperature Sensor can work for a long time in different placeModel: MH0302Supply: 85~250VAC,50-60HZPower consumption: 2WResolution ratio: 0.1Control output: 3A,250VAC(Resistance Load)Display LEDTemperature set range: -40~120 CelsiusHumidity set range: 0-99.9%RHTurn difference set Temperature: 0-9C, Humidity: 1-9%RHAccuracy Temperature: +-1C, Humidity: +-5%RHAmbient Temperature: -10C to 50 CelsiusAmbient Humidity: 45 to 85%RHMechanical Life At least: 3000,000 timesOutput mode setting value for Output mode type001= Heating,humididicatio / 002=Heating,dehumididication/ 003=Cooling, humididication / 004=Cooling,dehumididicationColour:BlackMaterial:ABS+electronic componentsSize:8.0 x 8.0 x 10.0 cmPackage Contents:1* Temperature & humidity controller MH03021* Temperature & humidity combined sensor in 3meter length cable1* User ManualOnly the above package content, other products are not included.Note: Light 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.