Pressure transmitter inside, stable and accurate. Automatically switches the pump off during water shortage and on when water is available. Equipped with a micro-computer processing chip for safe and intelligent control. One-click setup for on/off pressure limits. Waterproof rating: IP65. Relay capacity: 220V AC, 10A. Working pressure range: 0–10 Bar, compatible with all pump types. Output signal: active output, provides 220V power to the pump, capable of directly starting pumps up to 1.5KW. Type: Digital Pump Switch. Condition: . Installation note: If the pump does not have a check valve, a check valve must be installed before the pressure switch to prevent frequent cycling. When tap water is turned on and the pump cycles frequently, adjust the H setting to a higher value. If the pump runs continuously without stopping, lower the H setting. If the pump does not start, increase the L setting. Voltage: AC 220V. Plug type: EU plug, suitable for use in Indonesia, Germany, France, Spain, Italy, and other countries with compatible outlets. Color: As shown in picture. Material: Metal + Plastic. Package includes: 1 x Digital Pump Switch. Other items not included. Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement tolerance: ±1–3 cm.