The Morrison Model 918C Gallon Gauge with Alarm is used to measure the liquid level in an aboveground storage tank. The 918 audible alarm sounds when the fluid reaches the desired level the user has set. The Gallon Gauge provides an approximate read out clearly displayed in gallons, and can easily be read from 20 feet away! The Morrison Gallon Gauge eliminates the need to convert feet and inch gauge readings to gallons.

NOTE: Clock faces for gallon gauges are sold separately as they are calibrated to your Tank Size. Please pick a Gauge Face according to your tank dimensions after choosing your Gauge thread and float style.