HIGH ACCURACY AND QUALITY - High measuring accuracy, 0.1%, easy to read data, high quality digital humidity controller, durable use. SINGLE PANEL - There are 2 up and down buttons, easy to configure and use. HUMIDITY RANGE - Wide humidity measurement range 00% ~ 99% RH and extended fields of application. MULTI-VOLTAGE SELECTION - 12V / 24V / 220V are optional, you can choose the voltage according to the purpose. AFTER SALE GUARANTEE - We care about every customers feeling, If this product does not meet or exceed your expectation, please contact us first, we will solve the problem immediately. Specification: Model: XH-W3005 Weight: 68g / 2.4oz Input voltage: 12V, 24V, 220V (optional) Humidity range: 00 % ~ 99% RH Accuracy of humidity control: 0.1% RH Load power: 120W / 240W / 1500W Output type: direct output Mounting space: 73mm / 2.9inch Size: 60 * 45 * 31mm / 2.4 * 1.8 * 1.2inch Operating instructions: Thermostat connected to circuit, connected to power supply, digital tube indicates the leaving water temperature of the current humidity setting. Press the up button to display the start temperature, long press the up button for about 3 seconds and the start humidity number flashes, which can be set using the keys up and down. Adjust the humidity level: Press the down button to display the humidity threshold, then long press the down button for about 3 seconds to stop the digital flashing of humidity, which can be adjusted using the up and down keys. Restore factory settings: In the on state, simultaneously hold down the up and down keys. The digital tube displays 888, then automatically goes to the humidity detection value, that is, to restore factory settings. Package List: 1 x Digital Humidity Controller Note: The W3005 is direct output. So do not turn on the power if the output end is not connected properly or otherwise, in case the two-stage contact spark and careless touching of the wire cause unnecessary trouble.