The Model DXT-72 Photoelectric Smoke Detector Transmitter is a photoelectric smoke alarm with a built-in transmitter designed for use with Linear’s DX Format receivers. When smoke is detected, the alarm sounds a loud local alarm. Twenty seconds after the local alarm sounds, the built-in transmitter sends a digitally coded wireless signal to its companion receiver. The wireless signal will be repeated every 20 seconds as long as smoke is still present.
The digital DX code format features over a million possible codes. The DX transmitters are precoded at the factory to unique codes, so no field coding is required. The DXT-72 can send three different codes: alarm, test and low battery.
The unit is powered by two 9-volt alkaline or lithium batteries. These batteries are supplied with the transmitter and can power the unit for up to two years. If the battery voltage drops below a preset level the alarm will sound low battery beeps and a low battery signal will be sent to the receiver every hour (some receivers can report low battery, others cannot).
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