This HT-800 water flow sensor switch is an essential component for automated water pump control systems. Operating at 220V with a maximum current of 4A, it utilizes advanced magnetic control and sensing elements to reliably manage pump operation. The switch features separate chambers for induction, magnetic control, and electronics, preventing system failures caused by magnetic interference from pipeline particles. Built for durability, it can handle both hot water up to 158°F and cold water applications. The high-quality stainless steel reset spring enables ultra-sensitive activation at low water pressures above 0.03KG, making it ideal for low-pressure residential systems. With a G1 thread connection and maximum power rating of 200W, this switch is particularly valuable for water heater ignition systems and solar water heater circulation control. The sparkless electronic control mechanism ensures safe operation, while its robust construction promises a lifespan exceeding 100,000 cycles. Perfect for household plumbing systems, water heaters, and various liquid control applications requiring reliable, automated flow management.