It is a unique cable-suspended liquid level sensors offering convenience and reliability for a wide range of pump control and alarm applications. Usable formost of the low viscosity liquids. Simple construction, reIiable performance. The product can output stable and reliable switch control signal of "Making" & "Breaking” without any fault action, so its reliability is very high and anti-interference is strong. Sturdy and durable, needs no maintainance. The float is hermeticallysealed by double chamber and its unique mouldingprocess. Switch differential is set with the help of the counterweight that can be adjusted along the cable of the float switch.