Apollo ORB-OP-12001 Optical Smoke Detector with Flashing LED S/F 22/08 yet it is locked in

yet it is locked in place to prevent movement after installation

Edwards 890 Series Lamp Stations are designed for placement on the wall or ceiling above fire alarm manual pull stations

The MT strobes can be synchronized using the Wheelock DSM Sync Modules

T22 Series Line Voltage Thermostats with Manual Switch

Apollo ORB-OP-12001 Optical Smoke Detector with Flashing LED S/F 22/08 yet it is locked inOrbis Optical Smoke Detectors work on the well established light scatter principle. The remarkable optical design of the Orbis Optical Smoke Detector enables it to respond to a wide spectrum of fires. The sensing chamber contains an optical sensor which measures back scattered light as well as the more usual forward scattered light. Sensitivity to black smoke is greatly improved.