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Gas & Flame Detection, Environment Monitoring

Gas Analyzer >> Open Path Gas Analyzers

Sentry Series Open-Path UVDOAS Analyzers

The Sentry series is an open-path air-monitoring system that uses ultraviolet light to analyze the air for hazardous pollution and airborne toxins. Easy to use and portable, the Sentry can continuously monitor path-lengths up to 1000 meters and offer real-time detections of compounds ranging in concentrations from the parts-per-trillion to percent level.


Two versions are offered – the Sentry-MS version is a mono-static design eliminates the need for power at both ends of the path, while the UV-Sentry version is a bi-static (two-part) design.


Bulb LifePowerData OutputAlarmsNetworking
Sentry-MS & UV-Sentry2000 Hour Half‐Life Warranty (Xenon and Deuterium)Power 120 or 240VAC, 100W (DC Optonal)CSV via Ethernet and WiFi; Data Output Options RS‐232, 422, 485, RF Stream, MODBUS RTU, MODBUS TCP/IP, Email, 4‐20mA, 0‐5VDCUser Configurable. Fully configurable concentration and TLV averaged concentration alarm functionalitySealed LAN, WAN and USB Ports, optional cellular modem, radio modem