Moisture range:00%~99%RHHumidity control precision:0.1% RHLoad Power:  12v 120w .24v 240w ,220v 1500woutput type:Direct outputSize:60*45*31mm 

Instructions :Connect to power supply , diplay Instructions  humidity Set start the humidity:  Press the UP button display start the humidity , long press about 3s the  start the humidity flashing , then press the  UP or  Down adjust the  set Set to stop the humidity:Press the Down button display Stop the humidity , long press about 3s the Stop the humidity flashing , then press the  UP or  Down adjust the  set Restore the factory Settings:  press the  UP and Down button at the same time , will display 888 then will Automatically detect the humidity

Package include ; 

1pcs Digital Humidity Controller

1pcs SHT20 Humidity sensor