Features: digital humidity controller, durable in use. Simple panel: up and down two buttons, easy to set and operate. High measurement accuracy 0.1 percent , easy to read data. Wide measuring range of humidity 00 percent -99 percent RH , and wide application fields. Multi-voltage selection: 12V or 24V or 220V are optional, you can choose voltage according to the purpose. Specification: Model: XH-W3005 Weight: 68g or 2.4oz Input Voltage: 12V, 24V, 220V (Optional) Humidity Range: 00 percent -99 percent RH Humidity Control Precision: 0.1 percent RH Load Power: 120W or 240W or 1500W Output Type: direct output Mounting Hole Space: 73mm or 2.9inch Size: 60x45x31mm or 2.4x1.8x1.2inch Operation instructions: Thermostat connected to the circuit, connected to the power supply, digital tube shows the current humidity setting starting temperature. Press the "up" button to display the startup temperature, long press the "up" button for about 3 seconds, and the startup humidity number flashes, which can be set through the up and down keys. Set stop humidity: Press the "down" button to display the stop humidity, and long press the "down" button for about 3 seconds to stop the humidity digital flashing, which can be set through the up and down keys Restore factory Settings: Under the power on state, press and hold the up and down keys at the same time, the digital tube will display 888 and then automatically jump to the value of humidity detection, that is, to restore the factory settings. Package List: 1 x Digital Humidity Controller Note: W3005 is a direct output, so please do not power on if the output end is not connected properly or not connected, in case that the two-stage contact spark and careless touch of the wire cause unnecessary trouble. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.