Model SA-1N4 gas detection sensors are designed to detect and monitor toxic, oxygen and combustible gases in ambient air. Sampling is via diffusion. The design features a full range of sensor technologies; electrochemical sensors, photo ionization detectors, non-dispersed infra-red and a multi spectrum combustible gas detection sensor. Specific gas type is determined by installing a selected Model SA1 smart sensor module. Each sensor module stores gas type, range of sensitivity and the last zero and span calibration data points.

All electronics are contained within a NEMA 4X weather proof enclosure suitable for installation in non-hazardous locations. Model SA-1N4 gas detectors feature non-intrusive calibration using a small magnet or an Android™ phone or tablet and the Safeguard OpCheck application. The col-or graphic display provides simple and intuitive user interface with real time readings and full script service instructions. Device status is readily determined by screen color; green normal – no alarm condition, yellow alarm level 1, red alarm level 2 and blue indicates a fault condition.