Tank Alarm 918


Model: 918S

The 918 alarm box can be paired with a variety of Morrison 918 clock gauges or level sensors. The alarm provides an audible alarm and visual indication upon the receipt of a signal. Connect a variety of Morrison gauges or sensors to meet your requirements.



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Tank Alarm 918

Features & Benefits

  • Self-powered by long-life lithium batteries
  • Corrosion-resistant, water-resistant housing
  • User-defined alarm labels
  • 90 dB high pitched alarm
  • Visual alarm indicator light turns red to identify which sensor is alarming
  • Low battery light turns yellow indicating the battery power is low
  • Modular contacts make it easy to connect a variety of dry contact alarm devices
  • Intrinsically safe for Class I, Division 1 and 2, Group D hazardous locations

Construction Details
Alarm box: Polycarbonate plastic

Certifications & Listing
Alarm unit is UL 913 Listed

Available as a single channel, dual channel, or quad channel

Additional information

Weight 1.40 lbs
Dimensions 8 x 6.5 x 5.5 in

1000 AA


Single channel tank alarm box, use with 918 gauge & 918 TCPS sensors




Morrison Brothers


Single Channel Tank Alarm Box ONLY 918S–1000 AA, Dual Channel Tank Alarm Box ONLY 918D–1000 AA, Quad Channel Tank Alarm Box ONLY 918Q–1000 AA


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