GEN-7139CSC Gentex 7139 Ceiling Smoke Detector - Hard Wired with Battery Backup

Hard Wired - Electrician Installation The 7139 for ceiling mount is a photoelectric single station smoke detector designed to give reliable early warning of the presence of smoke where both audible and visual alarms are required. This model is hard-wired so you would need an electrician to hook it up. One year limited manufacturer's warranty.

The smoke detector operates on the light scattering principle, a superior method of detection in smoldering fires. It has a pulsing LED light source and a photodiode sensor in a fully screened sensing chamber. When smoke enters the chamber, the infrared beam is deflected onto the sensor. The LED rate increases to 8 times the normal pulse rate, and after the photodiode confirms the presence of smoke for 2 consecutive pulses, it will produce the signal necessary to trip the audible and strobe light alarms.

The 7139 series provides the temporal 3 (T3) evacuation tone as a standard feature. When testing, it may take up to 16 seconds longer to go in or out of alarm.

Features:

177 candela rating (very bright strobe light)

Solid state 90dB horn (very loud)

Full function test switch (easy for you to test that it is working)

Flashes 60 times per minute

Meets state, federal, and ADA requirements

Mounting hardware for ceiling

Temporal 3 (T3) Evacuation sounding device

Tandem connection up to 6 detectors per system

9V battery backup (audible alarm only)

UL Listed (USA)

See GEN-7139CSW for wall mount version