Welcome to Gregg Martin Instrumentation where responsive service is our goal.

Over 35 years of Instrumentation related experience at Water and Wastewater Treatment Plants throughout Wisconsin.

We service everything from analyzers to valve controls and everything in between.

Our specialty is flow monitoring and flow control equipment.

Calibration services for wastewater flow meters are required annually by the D.N.R.

Gas detection system supplier, installation, and calibration services.

RKI Partners with Gregg Martin Instrumentation

UNION CITY, CA–(Marketwire – October 4, 2010) – RKI Instruments would like to announce a new partnership with GMI to provide quality Hazardous Gas Detection equipment to Water and Waste Water facilities in Wisconsin and Northern Illinois regions. GMI is devoted to providing the highest integrity service to  Water and Waste Water facilities, as well as the highest quality, field-proven, equipment to their customers. It is with that same commitment to excellence that GMI now offers fixed (permanently installed) hazardous gas detection equipment manufactured by RKI Instruments, Inc., an American company based in Union City, California.

lift station, controller, scada, drivers