Gems Sensors is a global manufacturer of liquid level, flow, and pressure sensors, and solid-state relays and barriers. It designs, develops, and manufactures hundreds of products for the environmental/process controls and tool and component markets. Individual items include continuous level transmitters, pressure transducers, safe relays, solenoid valves, turbine sensors, and switches that monitor and control temperature, float type level, and flow levels. Its products are manufactured for use in various industries such as industrial, marine, medical, military, and nuclear, as well as wastewater treatment plants. Gems Sensors is a subsidiary of industrial and medical conglomerate Danaher Corporation.