1、With intelligent control chip, large‑capacity relay, stable performance and safe use. 2、Alloy large‑capacity contact, not easy to heat up after long time use, have excellent performance. 3、One open and one closed contact, wiring is clear at a glance, easy and convenient to use. 4、Made of high‑quality material PC flame retardant material, sturdy and durable, have a long service time. 5、Small in size and light in weight, convenient to carry and use at any time, very convenient and practical. 1 x BERM Floatless Level Switch Item Type: BERM Floatless Level SwitchMaterial: PC flame retardant materialModel: C61F-GPContact Form: A set of normally open and normally closed contactsWorking Voltage: AC 220V Purpose: Using the conductivity of the liquid, when the liquid reaches a certain height, it will act to cut off the power, and when the liquid is below a certain position, the power is turned on to make the pump work to achieve the effect of automatic control.