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Since 1996,

we have been servicing the water quality industry with original products, accurate instruments, and personalized customer care.

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Resistivity Monitors

High purity water is essential to an incredible number of products and services…

Complying with application specifications and system service requirements makes water quality monitoring a must for both the end user and the service provider.

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Conductivity Monitors

The 414C and 414TDS Water Conductivity Monitor-Controllers set a new standard in performance at a reasonable cost.

Designed for the demands of Water Conditioning and Water Treatment applications, they are the ideal specification for the OEM, Engineer, or Service Dealer.

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Water Quality Indicators

The Hy-Lite water quality indicator is a low-cost way to measure pure water quality for deionization, reverse osmosis, or distillation systems.

Featuring Auto Temperature compensation and 9 Set-points, the Hy-Lite is the most accurate and easy-to-use resistivity indicator available.

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1996 - 2025

Celebrating 29 Years of Cleaner Water

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Hydro-Check Systems Inc.™
1708 Ord Way
Oceanside, CA 92056
(760) 930-1924
(760) 930-1934

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