Low pressure safe water purifier pressure sensor is a sensor device mainly used to measure water quality under low pressure. Under low pressure, the flow of water slows down, which can affect the operation of the water filter, resulting in a decrease in water quality or a blockage in the transmission, which ultimately affects the filtration effect of the water. Therefore, in this case, the Low pressure safe water purifier pressure sensor can help monitor the pressure change of the water quality filter, so as to adjust the water flow in time and maintain the normal operation of the equipment to ensure the filtration efficiency and quality of water. At the same time, the use of the sensor device can also effectively save the cost of water and electricity.