Johnson Controls A19AAB-10C SF 22/12 The W-SD355 and W-SD355T communicate

The W-SD355 and W-SD355T communicate with the fire alarm control panels through a wireless mesh network to the W-GATE wireless gateway

Signature Series Model SIGA-HFS and SIGA-HRS Intelligent Heat Detectors gather analog information from their fixed temperature and/or rate-of-rise heat sensing elements and converts it into digital signals

— KI-ABDT Audible (Sounder) Base for CO and/or Fire Detectors

the secondary telephone line may be retained providing backup communication over the public switched telephone line

An improved cover design isolates the sensor head

Johnson Controls A19AAB-10C SF 22/12 The W-SD355 and W-SD355T communicate