This switch mounts to the outside of your tank and detects chemical level through plastic tank walls by measuring the capacitance between the switch and tank contents; it cannot be used with metal tanks.

Mount these switches from outside the tank through a threaded connection at the top or bottom of your tank.

Install these switches into an unthreaded hole at the top or bottom of your tank and secure with a nut from inside the tank.

Install these switches into a threaded connection in your tank wall from outside the tank.

Mount these switches through an unthreaded hole in your tank wall and secure with a nut from outside the tank.

Empty and fill your tank with a single device—this dual-level switch includes two float switches that actuate at different levels. Mount through a threaded connection at the top of your tank.

Mount these switches from outside the tank through a threaded connection at the top or bottom of your tank.

Detect water level with infrared light to avoid false switch activation caused by vibration in your tank.

Install one of these relays to actuate equipment that has a higher current rating than your switch.

Mount these switches from outside the tank through a threaded connection.

For visual monitoring and easy access, these switches are housed in a clear acrylic reservoir that mounts to the outside of your tank.

Mount these switches through an unthreaded hole in your tank wall and secure with a nut from outside the tank.

Mount this switch through the top of your tank.

For use in locations with flammable gases and combustible dust, this switch is UL listed and CSA certified for Class I, Divisions 1 and 2, Groups C and D; and Class II, Divisions 1 and 2, Groups E, F, and G.

Measure the level of conductive liquids without drilling a hole in your tank—these switches mount to the outside of the tank and track the capacitance between them and the tank’s contents.

Mount these switches into a threaded connection at the top or bottom of your tank.

Install these switches into a threaded connection in your tank wall from outside the tank.

Detect when oil rises on water, foam forms on beer, and tanks empty, triggering pumps and valves in food and sanitary lines. These switches are 3-A and European Hygienic Engineering and Design Group (EHEDG) certified since they’re easy to keep clean.