This First Alert SA511B is a Battery operated Photoelectric smoke detector with Wireless Interconnect. This alarm will wirelessly interconnect with other alarms in the same series (SCO500B, SA520B & CO511B). If you need to link together a hardwired system with these Wireless Interconnect alarms, you will need to get the SA521CN(SA520B) to use as a bridge unit.
First Alert Wireless Interconnect allows alarm interconnection without hardwiring. When one alarm activates, all alarms will be activated. You can easily link alarms together with the press of a button (see video below). The Photoelectric smoke sensor reduces nuisance alarms from cooking smoke or shower steam. Easy access battery drawer: no need to remove alarm from ceiling to change battery. 10-year limited warranty. Meets UL standards.
Wireless Interconnect enabled alarm
Exclusive! Voice alarm with programmable location. Programmable with up to eleven locations.
Single button test/silence
Two silence features – can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
RF Interconnect: reliable and secure radio frequency communication between alarms. 915 MHz frequency with 65,000 security codes and 3 channel frequency hopping.
Optipath 360 TechnologyTM – patented technology provides 360 degrees of direct access to the smoke sensor.
Perfect Mount – allows for easy alignment of alarm
Spread Spectrum Horn Tone – Lower and varying frequency makes it easier for the elderly with normal aged related hearing loss to hear the horn.
Latching Features: Alarm Latch – remembers which unit initiated an alarm. Low Battery Latch: Visually indentifies unit in low battery condition.
10-Years Limited Warranty
Model # SA511B
Weight 8.3 oz
Operating Voltage Two 1.5V AA Batteries
Humidity Range 10% to 90% relative humidity (RH)
Smoke Sensor Photoelectric
Listing ETL to UL 217 standard