Welcome to Greyline Instruments...

We develop and manufacture industrial flow and level monitoring instruments for measurement and control in water and wastewater treatment, industrial process automation and for environmental monitoring.

Greyline level instruments include ultrasonic level monitors and transmitters, tank level monitoring instruments and pump station level controllers.

Greyline's ultrasonic flow products include portable meters for troubleshooting and surveys, Doppler and Transit Time flow meters with clamp-on sensors, flow switches, open channel flow monitors and area-velocity flow meters.

Click Products for information on Greyline flow and level instruments or contact us at the following addresses: