Features The float switch cannot directly control solenoid valves or high-performance relays, AC contactors, etc. A small relay (such as HH54P) is required for the transition. The contacts inside consist of a reed switch with very high sensitivity. The double float switch can be used to control the liquid level of the water tank, pool, sink, aquarium, etc. (drain or water) or to operate the upper and lower alarm switch of the liquid level. The action range of the two floats of the double float switch is 10 mm. If the demand control range is large, two float switch combinations can be used, so that a large stroke is present to ensure that the pump does not start frequently. The normal water absorption process is activated by the float switch at the bottom, and the float switch at the top no longer works. The drain is activated by the float switch at the top and the lower float switch stops working. Specification: Voltage: DC 0 ~ 110 V. Material: 304 stainless steel. Size (floating body length): (optional). 100 mm. 150 mm. 200 mm. 250 mm. Package list: 1 x Double Ball Float Switch Features: The float switch cannot directly control solenoid valves or high-performance relays, AC contactors, etc. A small relay (such as HH54P) is required for the transition. The double float switch can be used to control the liquid level of the water tank, pool, sink, aquarium, etc. (drain or water) or to operate the upper and lower alarm switch of the liquid level. The normal water absorption process is activated by the float switch at the bottom, and the float switch at the top no longer works. The drain is activated by the float switch at the top and the lower float switch stops working. The contacts inside consist of a reed switch with very high sensitivity. The action range of the two floats of the double float switch is 10 mm. If the demand control range is large, two float switch combinations can be used, so that there is a large stroke to ensure that the pump does not start frequently. Package List