Welcome to our shop! The double ball float switch is a versatile device that can be used to control the liquid level of water tanks, pools, sinks, fish tanks, and more. It can be used for both drainage and water intake processes, as well as for creating upper and lower alarm switches for liquid levels. The contacts inside the float switch are made of a reed switch with high sensitivity, ensuring accurate and reliable operation. The action range of the two floats is 10 mm, but if a larger control range is required, two float switch combinations can be used to provide a larger stroke and prevent frequent pump starts. Please note that the float switch cannot directly control solenoid valves or high-power relays. A small relay, such as the HH54P, is needed for transition. Specification: - Voltage: DC 0~110V - Material: 304 Stainless Steel - Size (Floating Body Length): - 100mm / 3.94in - 150mm / 5.91in - 200mm / 7.87in - 250mm / 9.84in Package List: - 1 x Double Ball Float Switch 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.