Liquid Level Alarm Model 100

Monitor water levels in cisterns, sumps, septic systems, holding tanks, pump chambers, trucks, water treatment plants or storage tanks. Alarm a HIGH or LOW level condition. Control equipment with the optional relay. Installation is as simple as suspending the probe at the desired alarm level.

Monitor water level in pump chambers, cisterns, holding tanks, sumps, floor drains or truck tanks. The indoor alarm will warn of a threatening level condition.


  • Indoor alarm display with auto reset audible alarm
  • HIGH or LOW function selectable
  • Digital RF probe, 15m (50’) standard
  • Accuracy of probe best in industry +/- 3mm (1/8”)
  • Continual self-test that probe functioning correctly
  • Unit complete with all wiring
  • Custom probe cable lengths available
  • No limit to transmission distance
Power Supply 120VAC to 12VDC, 5W, UL listed and CSA certified
Enclosure ABS, flame retardant
LED Tricolor
Solid State Transducer 85db @ 10 cm
Relay Dry contacts, Normally Open, 2A @ 30 volts
Probe 25.4mm x 100mm, Type 304 SS, cable 2conductor, 18ga, unshielded, PVC jacket