For over 20 years Heron Instruments has, and will continue to develop, manufacture and distribute high quality, rugged, accurate, cost effective, reliable… ...Water Level Meters • Well Casing Indicators Well Depth Indicators • Data Loggers • Temperature Meters Conductivity Meters • Interface Meters • Pressure Transmitters Tag Lines • Borehole Inspection Cameras Made in Canada www.heroninstruments.com • 1-800-331-2032 • info@heroninstruments.com