Feature:1. The contact points are silver‑plated contacts and high‑quality pure copper conductive sheets, which have a good response effect2. High‑grade insulation board material, high temperature resistant and durable3. With a pressure adjustment knob, it is recommended to cut off the power first, remove the plastic cover, increase the pressure to "+" (CCW), and decrease the pressure to "‑" (CW)4. Great workmanship, can perfect replacement for the old one5. Small size, easy to carry and store, convenient to use and with good performanceSpecification:Item Type: Pressure SwitchRated Voltage: 220VRated Current: 16AThread Classification: G3/8 Diameter: Approx.15mm / 0.6inPressure Range: (pressure matching model)1.0-1.8KG (suitable for 125W)1.5-2.2KG (suitable for 250W 300W 371W)1.8-2.6KG (suitable for 550W)2.2-3.0KG (suitable for 750W)Generally, as long as the model and pressure correspondMarking Take (1.5-2.2KG) Technical for Example Explanation: When the water pressure is 1.5KG, the water pump will start automatically, and the 2.2KG pressure type water pump will stop workingSize: Approx. 50 x 50 x 15mm / 2 x 2 x 0.6in.Package List:1 x Pressure Switch1 x Accessories