$70

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$88.13

Kidde P3010K-CO 10-Year Sealed Battery Photoelectric Smoke & Carbon Monoxide Ala

$15

System Sensor RA100Z Smoke Automatic Fire Detector, Signaling Device "R4B"

$42.75

Smoke Detector Base,6", 4 Wire W/Relay, 24 Volt. System Sensor Model #B112LP

$120

Air Products Controls SL-2000-P 4 Wire Conventional Duct Smoke Detector

$42.5

NOTIFIER FST-951 ADDRESSABLE 135° FIXED TEMP. HEAT DETECTOR "WHITE" NIB

$184.43

First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm, White

$42.5

(NEW) SYSTEM SENSOR 2W-B SMOKE DETECTOR

$51.1

Honeywell Silent Knight Addressable Photoelectric Smoke Detector (SK-PHOTO-W)

$43.85

First Alert SM210L, 10-Year Sealed Battery Smoke Alarm with 1-Pack, White

$119.98

SITERWELL Plug-in Carbon Monoxide Detector 10-Year Battery CO Alarm 4-Pack

$1228.8

APOLLO XP 95 55000 885 APO MULTI SMOKE FIRE DETECTOR SENSOR PACK OF 5