SIEMENS FDO421 Photoelectric Smoke Detector base Voltage 24 VDC

Voltage 24 VDC

AC Failure Condition (ACFC): An AC Failure Condition (ACFC) is detected immediately when AC power drops below 102VAC

The Power Supply Extender is a high-current

Coverage Area: 53' X 72' (16m x 22m)

SIEMENS FDO421 Photoelectric Smoke Detector base Voltage 24 VDCThe Photoelectric Smoke Detector (Model FDO421) uses state of the art microcontroller circuitry and surface mount technology for maximum reliability. Model FDO421 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. Model FDO421 also uses state of the art microprocessor circuitry with error check;