Liquid Level Controller


Gizmo Engineering introduces the world’s most compact liquid level controller. If mounts directly on your tank with a 2” NPT thread for very easy installation. A 10 foot long piggyback cord allows you to simply plug in your pump which eliminates any cumbersome wiring installation. Built for corrosive, wet environments, it will survive in the most aggressive environments. Polypropylene wetted materials. The liquid level is maintained automatically between a high and low float switch which cycles your pump on and off. If for any reason the level gets too high, a third float switch dedicated for emergencies, triggers the high-visibility flashing beacon light, and very loud buzzer. The unique design protects the float inside the pipe so it can never get stuck, jammed or trapped. 

An optional screen keeps out debris and solids for very dirty liquids. These have even been used successfully in sewage tanks! Float guards can be removed for inspecting or cleaning the floats if necessary. Adjusting the working depths of the high and low level control points is done instantly with no tools using convenient thumbscrews. Simply slide each pipe to desired depth. Different operation modes such as filling or emptying behavior, alarm test button, pump test, snooze alarm and optional wireless communication, are included and can be set in the field. All this is inside the compact enclosure. Different mounting options such as plates or brackets make this suitable for lift stations, sumps, or tanks - anywhere a liquid needs automatic level control.


  • mounts directly on your tank
  • liquid level is maintained automatically
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