Features Simple control panel: two buttons up and down, easy to adjust and operate. Multiple voltage selections:12V/220V are optional, you can choose the voltage according to the purpose. Wide measuring range for humidity from 00% to 99% RH and wide range of applications. High quality digital humidity controller, durable in use. High measurement accuracy 0.1%, easy to read data. Specification: Model: XH-W3005. Weight: 68g/2.4oz Input voltage: 12 V, 220 V (optional). Humidity range: 00% ~ 99% relative humidity. Precision of moisture control: 0.1% RH. Load power: 120W/240W/1500W Output type: direct output Mounting hole spacing: 73mm/2.9" Size: 60 x 45 x 31 mm/2.4 x 1.8 x 1.2 inches. Instruction manual: Thermostat connected to the circuit, connected to the power supply, digital tube shows the starting temperature of the current humidity setting. Press the "Up" button to display the starting temperature, press and hold the "Up" button for about 3 seconds, and the starting humidity number flashes, which can be adjusted with the up and down buttons. Adjust stop humidity: Press the "Down" button to display the stop humidity, and hold the "down" button for about 3 seconds to stop the digital flashing of humidity, which can be adjusted with the up and down buttons Restore factory settings: Press and hold the up and down buttons at the same time when switched on, the digital tube displays 888 and then automatically jumps to the value of moisture detection, i.e. to restore the factory settings. < p> Package list: 1 x digital humidity controller. Note: W3005 is a direct output, so please do not turn on if the output end is not properly or not connected, in case the two-stage contact spark and careless touch of the wire cause unnecessary problems. Package List