Features:_x000D_ _x000D_ Made of high quality material, strong structure, anti-corrosion, durable in use. _x000D_ Designed to automatize the starting and stopping operation of water pump, and maintain the pressure and flow. _x000D_ Automatic control, no manual operation is required. When the system pipeline pressure reaches the upper limit, the power will be cut off automatically and the water pump will stop working. When the pressure reaches the lower limit, the power supply will be automatically connected and the water pump will start to work. _x000D_ Simple operation, stable performance, low consumption, saving energy. _x000D_ Suitable for hot and cold water automatic pump, the other family boost pumps, pipeline pumps, etc. _x000D_ _x000D_ Specification:_x000D_ Voltage: 220V_x000D_ Joint thread: G3/8"_x000D_ Pressure control range: (Optional)_x000D_ A. 1.0-1.8 KGF /c_x000D_ On: 1.0 KGF/c_x000D_ Off: 1.8 KGF/c_x000D_ B. 1.5-2.2 KGF /c_x000D_ On: 1.5 KGF/c_x000D_ Off: 2.2 KGF/c_x000D_ _x000D_ Package List:_x000D_ 1* Pressure Switch Controller_x000D_ _x000D_ _x000D_ _x000D_ Note:_x000D_ Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.