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FIG 918, 918F, 918T, 918FT

Clock Gauge Alarm

The Morrison clock gauge displays the liquid level of product stored in an aboveground storage tank. Measures the liquid level in tanks up to 12 feet high. The 918 audible alarm sounds when the liquid level in the tank reaches the users specified level.

Product Features

Standard Features

Easy to install in a single 2″ tank top opening, easy to calibrate

Battery powered audible alarm

Gauge face displays level reading in feet and inches. The hour hand (short hand) displays the number of feet and the minute hand (long hand) accurately displays the number of inches

Accurate to 1/8 of an inch

Easily read from 30 feet away

Vapor tight construction

Vapor tight fog free design

Gauge rotates 360° making it easy for the face to be read from the desired orientation

Visual indicators for high level (red) and low level (green) are applied to the dial face cover

Standard float fits through a 2″ schedule 40 pipe nipple; drop tube float fits through schedule 40 and schedule 80 pipe nipple

Compatible with 2″ Morrison 419 drop tube

Optional drop tube float when used in conjunction with a drop tube, reduces float entanglement when turbulent conditions are present

918T and 918FT series are compatible for use with Diesel Exhaust Fluid (DEF)


Construction Details

918 & 918F

Body: Aluminum

Float: Stainless steel

Cable: Stainless steel


918T & 918FT

Body: PTFE coated aluminum

Float: Stainless steel

Cable: Stainless steel


Certifications & Listings

Alarm unit is UL 913 listed; 918 single channel alarm and clock gauge is Florida DEP EQ-527

Product Ordering Instructions

Figure Suffix Size Description Weight (lbs)
918 0000 AG This model no longer available. Refer to 918—-0000AGEVR for equivalent.
918 0000AGEVR 2” Clock Gauge Less Alarm Box, Male Threads, Standard Float, CARB EVR Approved 6.2
918 2000 AG This model no longer available. Refer to 918—-2000AGEVR for equivalent.
918 2000AGEVR 2” Clock Gauge Less Alarm Box, Male Threads, Drop Tube Float, CARB EVR Approved 6.2
918S 1100 AA 2” Alarm Box Assembly, Use with 918 Gauge & 918TCP Sensors 1.13
918 0100 AG 2” Clock Gauge Alarm w/Standard Float 6.3
918 0400 AG 2” Clock Gauge Alarm w/Drop Tube Float 6.3
(Float Fits 2” Schd.40 & 80 Pipe & 2” MBC 419 Drop Tube)
918F 0100 AG 2” Clock Gauge Alarm/Female Thd w/Standard Float 6.3
918F 0400 AG 2” Clock Gauge Alarm/Female Thd w/Drop Tube Float 6.3
(Float Fits 2” Schd.40 & 80 Pipe & 2” MBC 419 Drop Tube)
918F 0000AGEVR 2” Clock Gauge Less Alarm Box, Female Threads, Standard Float, CARB EVR Approved 6.2
918F 2000AGEVR 2” Clock Gauge Less Alarm Box, Female Threads, Drop Tube Float, CARB EVR Approved 6.2
DEF Products
918T 0400 AG 2” Clock Gauge w/Alarm, w/Male Threads, PTFE Coated, Drop Tube Float 6.3
918T 2000 AG 2” Clock Gauge Less Alarm, w/ Male Threads, PTFE Coated, Drop Tube Float 6.3
918FT 0400 AG 2” Clock Gauge w/Alarm, w/Female Threads, PTFE Coated, Drop Tube Float 6.3
918FT 2000 AG 2” Clock Gauge Less Alarm, w/ Female Threads, PTFE Coated, Drop Tube Float 6.3
918MEFT 400 AG 2” Clock Gauge w/Alarm, w/Female Threads, PTFE Coated, Metric, Drop Tube Float 6.3
918METT 400 AG 2” Clock Gauge w/Alarm, w/Male Threads, PTFE Coated, Metric, Drop Tube Float 6.3