Connect the power and display the humidity indicator. Set the initial humidity: Press the UP key to display the initial humidity value, then hold for approximately 3 seconds until the value begins flashing. Use the UP or DOWN keys to adjust the setting. Set the humidity stop point: Press the DOWN key to display the stop humidity value, then hold for approximately 3 seconds until the value begins flashing. Use the UP or DOWN keys to adjust the setting. Restore factory settings: Press and hold both UP and DOWN keys simultaneously — the display will show “888” and automatically begin humidity detection. Model: XH-W3005 Humidity Range: 00%–99% RH Humidity Control Accuracy: 0.1% RH Measurement Accuracy: ±2% RH Load Power: AC 110–220 V, 1500 W Maximum Output Current: 10 A Output Type: Direct Output Dimensions: 60 × 45 × 31 mm Material: Metal + Plastic Color: As shown in product images Package Includes: 4 × Humidity Controller Note: Other accessories or items shown in images are not included. Color appearance may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.