Welcome to the store! Connect the power, and the humidity indicator will display. Set Initial Humidity: Press the UP button to display the initial humidity. Press and hold for about 3 seconds to start the humidity flashing, then press UP or DOWN to adjust the setting. Set Humidity Stop: Press the DOWN arrow to display the humidity stop. Press and hold for about 3 seconds to stop the humidity flashing, then press UP or DOWN to adjust the setting. Reset Factory Settings: Press UP and DOWN simultaneously. The display will show 888, and it will automatically detect humidity. Model: XH-W3005 Humidity Range: 00%~99%RH Humidity Control Accuracy: 0.1% RH Measurement Accuracy: +/- 2% RH Load Power: AC 110-220V 1500w Maximum Output Power: 10A Output Type: Direct Output Size: 60x45x31mm Material: Metal + Plastic Color: As Shown Package Contents: 1 * Humidity Controller Only the above package content is included; other products are not. Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real item. The allowable measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately for the best solution!