Hard-wired for Ceiling or Wall Mount
All the same features and quality as the other Gentex smoke detector models, except with battery backup. Battery backup operates audible alarm only. This 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 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.

Standard 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
• Quick-disconnect wiring harness
• Mounting hardware for ceiling or wall
• Tandem connection up to 6 detectors per system
• 9V battery backup (audible alarm only)
• UL Listed (USA)
• ULC Listed (Canada)

Product SKU: GEN-7109CS