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The DRUM ALARM for low liquid level alerts you with a bright flashing LED and a loud audio alert when liquid level is low. Monitor drum levels around the clock and never run empty again!  A simple convenient way to monitor liquid level only. 2 Year Limited Warranty.<br><br>

Gizmo Engineering Low Level Polypropylene 55 Gal Drum Alarm DLK-PP-55 - Threaded Collar Knob

low-level-drum-alarm-polypropylene-threaded-collar-knob-55-gallon-1

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