![System Sensor OSI-R-SS Reflected Type Beam Smoke Detector, 4-Wire, Single-Ended, 8" Reflector and Integral Sensitivity Test, (Replaces BEAM1224) System Sensor OSI-R-SS Reflected Type Beam Smoke Detector, 4-Wire, Single-Ended, 8" Reflector and Integral Sensitivity Test, (Replaces BEAM1224)](https://cdn.adiglobaldistribution.us/pim/500X500/10035/BK-OSIR_lg.jpg)
System Sensor OSI-R-SS Reflected Type Beam Smoke Detector, 4-Wire, Single-Ended, 8" Reflector and Integral Sensitivity Test, (Replaces BEAM1224)
![trutest smoke detector sensitivity tester with clear transparent cup next to a man holding a trutest that is attached to a solo pole - SDi Fire trutest smoke detector sensitivity tester with clear transparent cup next to a man holding a trutest that is attached to a solo pole - SDi Fire](https://sdifire.com/wp-content/uploads/2016/03/trutest-category-picture.jpg)
trutest smoke detector sensitivity tester with clear transparent cup next to a man holding a trutest that is attached to a solo pole - SDi Fire
![Smoke Detector Sensitivity Test|System Sensor i3 Series| C2WBA|Fire Alarm System| Inspection - YouTube Smoke Detector Sensitivity Test|System Sensor i3 Series| C2WBA|Fire Alarm System| Inspection - YouTube](https://i.ytimg.com/vi/LCDqC1bnO9Q/maxresdefault.jpg)