Feature:OOTDTY1. Can be set to start and stop humidity2. The display and control can be controlled up to 0.1 degrees3. Imported wet probe, remarkable wet resistance4. This section uses multi-thread IC humidity meter, with high precision5. Installation convenient wiring is simple, high precision and long service life6. Cheap, completely replace the mechanical humidity switch! Description:Humidity Range: 00% - 99%RHDardation Control Accuracy: 0.1%RHMeload Capacity: 12v 120w .24v 240w ,220v 1500w Output Type: Direct Output Size: 60*45*31mm Usage:1. Connect to the power supply, the humidity of the playback instruction2. Set start humidity: press the button with binding, the buttoned display start humidity, long press about 3s to start humidity flashing, and then press the button up or down adjust the set3. Set to stop humidity: press the down button to stop the humidity, press and hold about 3s to stop the humidity flashing, then press the up or down button, adjust the setRestore factory settings: press the up button and the down button at the same time, there will be 888 display, then it will automatically detect the humidityNote:Size for manual measurement, there may be 0 to 2mm error, is a normal phenomenon. Package Includes; 1pc Digital Humidity Controller1pc SHT20 Humidity Sensor