Siemens FDOOTC441 Smoke Detector imported eBay flame retardant thermoplastic housing

flame retardant thermoplastic housing

or monitor type dry contact initiating device circuits (IDCs) to a Signature loop controller

It operates at 25/70

520 Hz Low Frequency Audible Base

Efficient Integration – This simplifies communication with external fire safety devices

Siemens FDOOTC441 Smoke Detector imported eBay flame retardant thermoplastic housingModel FDOOTC441 is an advanced, multi criteria fire CO detector that incorporates a redundant optical thermal sensor. Additionally, Model FDOOTC441 utilizes ASAtechnology a distinctive forward backward, light scattering technology that provides high tech, unparalleled fire detection to the widest range of fire types allowing the detector to distinguish non threatening deceptive phenomena. Features UL 268 7th edition Listed, ULC Listed; FM (#3230,