This is a mini chrome steel circulation switch,contains no for mercury. Light weight and simple operating principle,high reliability. This glide change is a tool used to sense the level of liquid within a tank, the switch may turn on a pump,an indicator,an alarm,or diversified device. This drift swap is an easy structure,easy set up liquid level controller. It would not have a complex circuit,will now not be disturbed,as prolonged since the material selection, liquid,pressure or temperture can be utilized in any environment. The versatility of this vertically monted sensor means that it may be put in both on the peak or base of your tank,depending on whether or not you for wish to discover the water's rise or fall. The go along with the stream point switch is broadly used in electronic,electrical,chemical,water treatment, drainage and diversified walks of life point leadership and alarm Specification: Material: Stainless Steel Color: Silver Size: 28*28*9 Quantity: 1 Pcs Note: Please enable 1-3mm error thanks to guide measurement. pls make sure you don't mind earlier than you bid Due to the variation between varied monitors, the image may not reflect the actual color of the item. Thank you! Package Contents: 1x Floating Switch