Tank Alert® EZ DUO

Innovative, Indoor or Outdoor Liquid Level Dual Alarm System

tank alert ez duo

The Tank Alert® EZ DUO alarm system monitors two separate liquid levels or other contact closure in lift pump chambers, sump pump basins, holding tanks, sewage, agricultural, and other water applications.

The Tank Alert® EZ DUO indoor/outdoor alarm can serve as a high or low level alarm depending on the float switch model used. This easy to install alarm features an innovative, sleek 2-color molded enclosure which integrates the red LED translucent beacon.

The alarm sounds and the upper housing half illuminates when a potentially threatening liquid level condition occurs. The audible alarm can be silenced by pressing the Test/Silence button, but the alarm light will remain on until the condition is remedied. Once the condition is cleared, the alarm will automatically reset. A green “Power On” light indicates power to the alarm panel.

tank alert ez duo


  • 2-color molded enclosure offers a distinct look; upper translucent half illuminates in alarm condition
  • Red LED for alarm 1 and amber LED for alarm 2
  • Removable lower cover provides greater access for easier field wiring while the internal circuitry remains protected
  • Interlocking enclosure features unique sound chamber to amplify the horn, while helping prevent moisture from entering
  • External mounting tabs for easy installation
  • Enclosure meets Type 3R water-tight standards
  • Enclosure has indicator marks on bottom for easy placement of cord entry locations
  • Automatic alarm reset, horn silence switch, and alarm test switch
  • Alarm horn sounds at 82 decibels at 10 feet (3 meters)
  • Alarm system (when installed on separate circuit) operates even if pump circuit fails
  • Green power on indicator
  • Includes auxiliary alarm contacts for easy attachment of remote devices
  • CSA Certified
  • 5 year limited warranty



  • PRIMARY: 120 VAC, 50/60 Hz, 3.8 watts max. (alarm condition)

ALARM ENCLOSURE: 6.7 x 5.3 x 2.5 inch (17.02 x 13.46 x 6.35 cm), indoor-outdoor, weatherproof, thermoplastic meets Type 3R water-tight standard

ALARM HORN: 82 decibels at 10 feet (3 meters)

AUXILIARY ALARM CONTACTS: 240 VAC / 30 VDC, 1.5 amps max., 50/60 Hz (circuit not supervised)

FLOAT SWITCH: SJE SignalMaster® control switch with mounting clamp

  • CABLE: 15 feet (4.57 meters), flexible 18 gauge, 2 conductor (UL) SJOW, water-resistant (CPE)
  • FLOAT: 2.74 inch diameter x 4.83 inch long (7 cm x 12.3 cm), high impact, corrosion resistant polypropylene housing for use in sewage and non-potable water up to 140°F (60°C)
  • MAXIMUM WATER DEPTH: 30 feet (9 meters), 13 PSI
  • ELECTRICAL: 5 amps, 125 VAC/250 VAC, 50/60 Hz


Available Downloads
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