Siemens OP921 Photoelectric Smoke Detector S54320-F4-A2 ISO Tech
$ 54.92
Description
The Siemens Photoelectric Smoke Detector OP921 ( Siemens part#S54320-F4-A2), is a powerful device that is compatible with Siemens model ‘H’ series devices on the same loop ( with Cerberus PRO fire-alarm control panels (FACPs) or FireFinder XLS FACPs). This detector uses state-of-the-art microcontroller circuitry and surface-mount technology for maximum reliability. Model OP921 incorporates an optical sensor using a light-scattering detection principle. The device utilizes advanced software algorithms to analyze the signals, and provides highly stable and accurate smoke detection.