HSI Sensing – High Security Sentinel Sensors
The HSI Sensing Sentinel line is a group of advanced, high-security entry-point sensors with a UL 634 Level 2 listing. UL 634 is the standard for all switches and connectors used in alarm systems and can be further ranked between High Security Levels 1 and Level 2. Level 2 devices, such as Sentinel, meet the strict […]
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