Get It Fast
  |  Model#  21027431
$3497
$3497

Alarm Sensor Type Photoelectric

10-Year Battery

Pack Size 1

Alarm Type Smoke

Batteries Included Yes

Free delivery

Set your store to see local
availability

  |  Model#  21028114
$4997
$4997

Alarm Sensor Type Photoelectric

Pack Size 1

10-Year Battery

Power Source Hardwired

Interconnected

Free delivery

Set your store to see local
availability

  |  Model#  21026872
$8340
$8340

Alarm Sensor Type Photoelectric

Pack Size 1

10-Year Battery

Power Source Hardwired

Interconnected

Free delivery

Set your store to see local
availability

  |  Model#  21027326
$5496
$5496

Alarm Sensor Type Photoelectric

Pack Size 1

10-Year Battery

Power Source Hardwired

Interconnected

Free delivery

Set your store to see local
availability

  |  Model#  21028501
$2067
$2067

Alarm Sensor Type Multi-Criteria Optical

Pack Size 1

Battery Type Required 9-volt

Alarm Type Smoke

Hush Feature

Free delivery

Set your store to see local
availability

  |  Model#  21028114
$19988
/bundle
$19988
/bundle

Alarm Sensor Type Photoelectric

Pack Size 4

10-Year Battery

Power Source Hardwired

Interconnected

Free delivery

Set your store to see local
availability

  |  Model#  21028755
$7900
/bundle
$7900
/bundle

Alarm Sensor Type Photoelectric

10-Year Battery

Pack Size 2

Interconnected

Alarm Type Smoke

Schedule delivery

Set your store to see local
availability

  |  Model#  21027537
$3497
$3497

Alarm Sensor Type Photoelectric

Pack Size 1

10-Year Battery

Power Source Hardwired

Interconnected

Delivery unavailable

Set your store to see local
availability

  |  Model#  21027682
$15800
/bundle
$15800
/bundle

Alarm Sensor Type Photoelectric

10-Year Battery

Pack Size 4

Interconnected

Alarm Type Smoke

Out of stock online

Set your store to see local
availability

  |  Model#  21028502
$3064
$3064

Alarm Sensor Type Multi-Criteria Optical

Pack Size 1

Power Source Hardwired

Interconnected

Battery Back-Up

Out of stock online

Set your store to see local
availability

  |  Model#  SA511B
$3879
$3879

Alarm Sensor Type Photoelectric

Pack Size 1

Alarm Type Smoke

Batteries Included Yes

Included Batteries

Out of stock online

Set your store to see local
availability

  |  Model#  SA511CN2-3ST
$7059
$7059

Alarm Sensor Type Photoelectric

Pack Size 2

Interconnected

Alarm Type Smoke

Batteries Included Yes

Out of stock online

Set your store to see local
availability

  |  Model#  21027681
$4996
$4996

Alarm Sensor Type Photoelectric

10-Year Battery

Pack Size 1

Interconnected

Alarm Type Smoke

Out of stock online

Set your store to see local
availability

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