Gems Sensors
Gems Sensors & Controls. Plainville, Connecticut. Founded 1955; part of Fortive's Sensing Technologies group. Level switches (LS-1700, LS-3, LS-7 series), pressure sensors, flow sensors and fluidic solenoid valves for industrial, marine and process control. The float-switch family is the de-facto reference on small reservoirs, hydraulic tanks and bilge alarms.
Gems Sensors by category

Sensors & Instrumentation
Gems LS-1750 Single-Point Float Switch, 316SS, 1/8 NPT
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Sensors & Instrumentation
Gems LS-1800 Single-Point Float Switch, Polypropylene, 1/8 NPT
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Sensors & Instrumentation
Gems LS-3 Series Vertical Float Switch, 316SS
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Sensors & Instrumentation
Gems LS-7 Side-Mount Float Switch, 316SS, 1/2 NPT
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Sensors & Instrumentation
Gems 1100 Series Multi-Point Float Switch, 316SS
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Sensors & Instrumentation
Gems 2200 Series Continuous Level Sensor, 316SS
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Sensors & Instrumentation
Gems 3100 Series Pressure Transmitter, 4-20 mA
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Sensors & Instrumentation
Gems 3300 Series Heavy-Duty Pressure Transmitter, 4-20 mA
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Sensors & Instrumentation
Gems FS-380 Series Inline Flow Switch, Brass
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Frequently asked questions
- Where can I buy Gems Sensors products?
- 9 Gems Sensors items are listed on cballast.com — request a quotation on any product page or by email to sales@cballast.com, with worldwide dispatch and a reply within 24 hours.
- Which Gems Sensors product ranges does cBallast list?
- The Gems Sensors catalogue covers Sensors & Instrumentation; each range has its own page with part numbers and specifications.
- Can cBallast source a Gems Sensors part that is not listed?
- Yes — send the manufacturer part number to sales@cballast.com and it will be quoted; the catalogue is a subset of what can be supplied.
