Features [Dual Ball Float Switch] This float switch uses two balls to control liquid levels, the motion range of two floats is 10mm. When a larger control range is required, you can combine two float switches for larger stroke, preventing excessive pump cycles. [Stainless Steel Casing] The float switch water level sensor features sturdy 304 stainless steel casing, resistant to rust and corrosion, ensuring durability even in demanding environments. [Highly Sensitive] This float switch water level controller offers exceptional sensitivity, accurately detecting liquid levels and providing reliable control and operation. [Specification and Length] With a 150mm size and a 400mm long wire, this float switch is designed to meet various installation requirements, providing versatility and convenience. [Wide Application] The dual ball float switch can be utilized for controlling liquid levels of water tanks, pools, sinks, aquariums, and more, or serving as an alarm switch for liquid level up and down. 1. [Dual Ball Float Switch] This float switch uses two balls to control liquid levels, the motion range of two floats is 10mm. When a larger control range is required, you can combine two float switches for larger stroke, preventing excessive pump cycles. 2. [Stainless Steel Casing] The float switch water level sensor features sturdy 304 stainless steel casing, resistant to rust and corrosion, ensuring durability even in demanding environments. 3. [Highly Sensitive] This float switch water level controller offers exceptional sensitivity, accurately detecting liquid levels and providing reliable control and operation. 4. [Specification and Length] With a 150mm size and a 400mm long wire, this float switch is designed to meet various installation requirements, providing versatility and convenience. 5. [Wide Application] The dual ball float switch can be utilized for controlling liquid levels of water tanks, pools, sinks, aquariums, and more, or serving as an alarm switch for liquid level up and down. Specification: Item Type: Float Switch Material: Stainless Steel Specification: 150mm Voltage: 0-220V Wire Length: Approx. 400mm/15.75in How to Use: During the normal water inflow process, the lower float switch is activated, while the upper float switch is no longer functional; The drainage is activated by the top float switch, and the lower float switch stops working. Package List: 1 x Dual Ball Float Switch Notice: Float switch cannot directly control solenoid valves, high performance relays, AC contactors, etc., and require small relays for transition. Package List 1 x Dual Ball Float Switch