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About Us

A leader in the industrial sensor and automated monitoring system

Rel-Tek manufactures a complete line of gas monitoring and control systems, including PC-based data logging and telemetry software and a full complement of field I/O hardware. Sensors include carbon monoxide and other toxics, methane and all combustibles, oxygen(% and PPM), carbon dioxide, NO2, SO2, H2S, smoke, temp, pressure, RH and air velocity. We supply complete systems -- not just bits and pieces -- ideal for both large and small monitoring and control situations. Our world-class Millennia-DX PC-based SCADA software provides a dependable, easy to use HMI utility that is powerful, yet economical. Our clients include underground mines, tunnels, factories, water treatment, office buildings, municipal bus garages and other hazardous sites. Rel-Tek is a major supplier to alternative-fueled vehicle maintenance operations (CNG, LNG and LPG). Over 100 approval actions cover this equipment for use in classified areas.

Automatic sensor calibration is our forte -- unique to Rel-Tek, patents pending. It virtually eliminates the major cost of on going gas sensor maintenance, while improving sensor accuracy and safety. MagiKal even extends sensor life. Ask us how? Payback is massive.