Gems Sensors & Controls


Gems Sensors & Controls designs and manufactures an extensive portfolio of liquid level, flow-switches, and pressure switches, sensors and transducers, miniature solenoid valves, and pre-assembled fluidic systems.

These products are used in almost every industry from medical to wastewater treatment and HVACR to food and beverage. 

EFP works with Gems’ dedicated engineers to identify our customers' unique needs and develop a custom solution.

EFP serves industrial customers in Ohio, Kentucky, and Indiana.

Gems Product Categories Include:
EFP Gems Flow Sensors
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Liquid Level


Low Water Cut

Off Boiler Controls 

Relays & Barriers
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Gems Sensors And Controls Products Include:
Gems Sensors And Controls Product Categories Include: