Tank Alert® AB DUO

Indoor Tank Alarm Monitors 2 Levels in 1 Convenient Alarm

tank alert ab duo

The Tank Alert® AB DUO (Auto reset, Battery backup, DUO alarm inputs) indoor alarm system monitors two liquid level conditions in one easy-to-install alarm for lift pump chambers, sump pump basins, holding tanks, sewage, agricultural, filter and other waste applications.

The sleek design of the alarm features a user friendly touch pad with colored LED indicators for easy visual detection. The alarm horn and red LED indicator activate for a high level alarm condition. The alarm horn and yellow LED indicator activate for alarm 2. The green LED indicates 120V primary power to the alarm. Once the condition is cleared, the alarm automatically resets.

Need help picking the best alarm for your application? Try our handy interactive quiz! We also have an alarm comparison chart for quick reference.

tank alert ab duo

Features

  • DUO alarm inputs to monitor 2 levels
  • Colored LED indicators:
    • Red alarm 1
    • Yellow alarm 2
    • Green power on
  • NEMA 1 rated enclosure for indoor use
  • Automatic alarm reset
  • 9 VDC battery backup with low battery chirp
  • Alarm test switch
  • Horn silence switch
  • External terminal block for easy float installation
  • Includes 15′ SJE SignalMaster® control switch
  • Can be used as a high level, low level or filter alarm
Options:
  • Auxiliary dry normally open and normally closed contacts
CSA Certified
Five-Year Limited Warranty

Specifications

VOLTAGE FOR 120V MODEL:
  • Primary: 120 VAC, 60 Hz, 2.4 watts max. (alarm condition)
  • Secondary: 9 VDC
BATTERY BACKUP POWER:
  • 9 VDC
ALARM ENCLOSURE:
  • 6 x 4 x 2.25 inches (15.24 x 10.16 x 5.71 cm), NEMA 1 plastic

ALARM HORN:

  • 87 decibels at 10 feet (3 meters)
POWER CORD:
  • 6 feet (1.8 meters)
AUXILIARY ALARM CONTACTS (optional):
  • Voltage: 120 VAC
  • Current: 0.5 amps maximum
FLOAT SWITCH CONNECTION TERMINAL:
  • For float switch connection only. Do not apply power. (Voltage across terminals is 8-9 VDC)
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 inches diameter x 4.83 inches long (7.0 cm x 12.3 cm), high impact, corrosion resistant polypropylene housing for use in sewage and water up to 140°F (60°C)
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