System sensor 400 Series Photo Smoke

to sense the presence of smoke particles produced by a widerange of combustion sources. A custom integrated circuit incorporates signal processing to reduce false alarms.-Low standby current-Two visible LEDs blink in standby and provide a 360 degree field viewing angle-Wide variety of mounting bases with built-in shorting spring-Detector head plugs easily into base-Built-in test switch-Field sensitivity metering of detector to meet the requirements of NFPA 72-Built-in tamper-resistant feature SEMS screws for easy wiring-Optional recessed mounting-Removable cover and insect screen for field cleaning