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Model OP921 incorporates an optical sensor using a light-scattering detection principle
Simplex 8565-158 Mapnet Insolator Board
simplifying maintenance and inspection
• Built-in test switch for easy testing
Proven effective for over 40 years
System Sensor RTS151KEY Remote Resting Station Xtralis Model OP921 incorporates an opticalSystem Sensor RTS151KEY Remote Resting Station designed to test duct smoke detectors conveniently This fire detector accessory features a multi colored LED alternating between steady green and red, making it perfect for 4 wire detectors. It also illuminates red for alarms with 2 wire detectors. Features This testing station has a maximum alarm response time of 40 seconds and boasts a compact design, measuring 4. 6" H x 2. 75" W x 1. 8" D. It operates
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