Sensata / Cynergy3 RSF66 Series Vertical Nitrile Rubber (NBR) Float Switch, 1 m Cable, Direct Load, 240 V ac ac Max, 120

Choose this Sensata Cynergy3 dual float switch to keep your system's liquid levels within pre-set high and low limits. You can use it to control the emptying of tanks via electromechanical relays. The switch is made from durable and robust PPS (polyphenylene sulphide) which is compatible with a wide range of liquids, including inorganic and organic chemicals, oils and water. The device comes supplied with a four-core PVC cable, and you can mount it vertically on the top or bottom of your tank, so it's ideal for use when there's no side access.

• Wide operating temperature range of -10°C to +85°C for use in challenging environments

This device has an internal magnet that'll move in relation to the reed switch as liquid levels change. When the liquid reaches a specified level, the magnet will trigger the switch, which can then activate an alarm.