The SA-4N4 gas detection systems have been engineered for the purpose of detecting and monitoring various gases such as toxic, oxygen, and combustible gases within the surrounding air. These sensors utilize diffusion-based sampling methods. The design incorporates a comprehensive array of sensor technologies, including electrochemical sensors, photoionization detectors, non-dispersed infrared sensors, and a multi-spectrum combustible gas detection sensor. The specific gas to be detected is determined by installing a chosen Model SA1 smart sensor module. Each sensor module retains information about the gas type, sensitivity range, default alarm levels as well as the most recent zero and span calibration data points.

All electronic components are housed within a NEMA 4X weatherproof enclosure, making it suitable for installation in non hazardous locations. The SA-4N4 gas detectors offer a user-friendly calibration process, which can be accomplished non intrusively using a small magnet or an Android™ phone or tablet along with the Safeguard OpCheck application. The color graphic display simplifies the user interface, providing real-time readings and full script service instructions. The device’s status is easily discerned through screen colors, with green indicating normal operation (no alarm), yellow signifying an alarm at level 1, red indicating an alarm at level 2, and blue denoting a fault condition.