521CRXT GE Photoelectric Smoke Detector 2-wire w / CleanMe, thermal sensor and auxiliary relays, 12/24VDC. Smart dual fixed / rate of rise heat sensors. Relay. S11A compatible On sale now. GE Security is part of UTC Fire & Security, fire protection and security solutions to more than 1 million customers worldwide. GE Security has operations in 30 countries and is used by some of the best known brands to represent intrusion detection and fire-access and Bui
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