Gems Sensors and Warrick Controls

Marine Product Applications

Marine Product Applications
MarineGrade™ Sensors: Built for Shipboard Demands
Since 1955, Gems™ Sensors & Controls has earned a solid reputation for accuracy and dependability in marine service. Gems™ marine products are approved and qualified to MIL-L-23886, the military specification for fluid level sensors. Other military qualifications include MIL-S-901C, Shock Test High Impact Shipboard Machinery, Equipment and Systems…MIL-STD-167, Mechanical Vibration of Shipboard Equipment Vibration...Inclination, Bureau Veritas, Lloyds, ABS and USCG. Commercial vessel approvals include UL, CSA, and FM.
Typical applications are ship-wide and include high, low and/or intermediate level alarms, automatic pump-up and pump-down control, single-point, multi-point and continuous level monitoring, flow confirmation, and pressure switch monitoring in:

    Auxiliary generator fuel tanks
    Bilge level detection
    Fuel oil storage tanks
    Potable water storage tanks
    Deck flooding alarms
    Ballast tanks
    Hydraulic system reservoirs
    Gray water tanks
    Cooling systems
    Coolant tanks
    Bilges and Voids
    AFFF Tanks
    Day tanks
    High level alarms for closed loading
    Lube oil and lube sump tanks


Gems marine sensors are built purposefully rugged to accommodate harsh conditions including turbulent liquids, liquids containing foreign material, liquid interfaces, high temperature and high-pressure fluids. Construction materials include bronze, 304 or 316 SS, Monel™ and copper-nickel alloys. Standard floats are of Buna N for oils, stainless steel for high temps, and Hycel (epoxy) for high pressures. Mounting flanges and electrical connections per Navy specifications are routine at Gems.


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