BRK SA511B Wireless Interconnect Battery Smoke Alarm with Voice

Description

communication distance (range) between any two First AlertWireless Interconnect Alarms is typically 50′ (15m) inside of a homeSingle button test/silenceTwo silence features, can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarmRF Interconnect, reliable and secure radio frequency communication between alarms. 915 MHz Frequency with 65,000 security codes and 3-Channel frequency hoppingOptipath 360 technology, patented technology provides 360 degrees of direct access to the smoke sensorPerfect mount, allows for easy alignment of alarmSpread spectrum horn tone, lower and varying frequency makes it easier for the elderly with normal aged related hearing loss to hear the hornThe battery-operated wireless interconnected smoke detector requires no wiring and no electrician to install