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The UD-2000 Digital Alarm Communicator Transmitter (DACT) provides for up to two (2) phone lines for communication to a monitoring station
Installation flexibility
LED technology With the industry's smallest footprint
They provide location specific addressability to a single initiating device (such as single station smoke detector alarm contacts or heat detector contacts) or multiple devices at the same location by monitoring normally open dry contacts and the wiring to an end-of-line resistor
Edwards 3-12SR LED Display Control Module - 12 Switches With 12 Red Leds
Siemens OP121 (S54372-F1-A1) Smoke Detector ELFHSR The UD-2000 Digital Alarm CommunicatorSiemens OP121(S54372 F1 A1) Photoelectric Smoke Detector Model OP121 from Siemens Fire Safety is a photoelectric smoke detector with microprocessor controlled, self diagnostic circuitry, eliminating the need for burdensome sensitivity test equipment. Model OP121 also comes with a new magnet test feature. The magnet test feature allows installers and test personnel to prove the integrity of the wiring and proper connection to the fire alarm control
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