Gems Sensors & Controls designs and develops liquid, flow, and pressure level sensors including ultrasonic level sensors, float type level switches, thin film pressure transmitters, Piezo-Resonant liquid level sensors, and more.

Innovative Components makes liquid level indicators and tank gauges including gloat type electrical and mechanical models, pressure transmitters, and ultrasonic transmitters including continuous level monitors and more.

Madison provides liquid level and precise tank level measurement including sensors and flaot switches for applications requiring radar level sensors, ultrasonic sensors, continuous level indicators, single and multi-point liquid level float switches, and more.

Thomas Products provides level measurement products in brass or stainless steel for use in hazardous locations, non-electrical and other uses with operating temperatures from -40 degrees F to 255 degrees F with operating pressure of 400PSI maximum.