Ultrasonic Tri-Mode Drum Gauge

 When powered by a 24V external power supply, the gauge will monitor fluid levels continuously. The 4-20mA output can be interfaced to external controllers and test equipment. Gauge accuracy is +/- 0.5 gallon (supplied with 3/4" bung adapter). The monitor settings may be easily switched with the press of a button to calibrate the liquid level in a vertical 15, 30 or 55 gallon or 57, 114 or 128 liter drum. Features a NEMA 4 housing, low battery life indicator, and an LED warning light that flashes every second when fluid level is less than 10% the maximum volume. Compatible with water, wastewater, motor oil, hydraulic fluid and diesel fuel. Not for use with gasoline or other flammables.Note: 4-20mA output function is not available in battery mode