LPU-2127 : Loop Powered Ultrasonic Level Sensor. Range 1 to 25 ft
(0.3 to 7.6m) Detection of liquids. 1 to 10 ft (0.3 to 3m )
detection on solids. Keypad & LCD display. Approvals CSA C/US:
Class1, Div 2 Groups C & D.
Max Pressure is 30 PSIG
Display Measures in FT, IN, MM.