Add-on Wireless Magnetic Door/window Sensor For Securityman(r) Air-alarm System Wireless Transmitting Distance: _450 Ft In Open Area Alarm Distance: < 4 Cm Operating Power: 23a 12v Alkaline Battery Battery Life: _ 2 Years
Ionization Smoke Sensor Easy-to-use Mute Button Includes 9v Battery Ez-access Battery Door Bright Fire Escape Light
Ionization Smoke Sensor Ez-access Battery Door Easy-to-use Mute Button 10-year Lithium Power Cell Tamper-proof Alarm Design
