First Alert Direct Wire Combination Smoke And Carbon Monoxide Detector, 120 Volt With 9 Volt Battery Back Up SC9120B 6 PACK - Walmart.com
System Sensor COSMO-2W 2-wire Smoke CO Detector Combo
RV Safe Carbon Monoxide and Propane Gas 2-Wire Alarm, Black | Camping World
United Technologies Corp. 21006377-N AC Wire-In Carbon Monoxide and Smoke Alarm
CMD5B1000 CO Detector 5% 2 wire 4-20mA output - Edgemont Precision Rebuilders, Inc.
Co Gas Detector, 12/24V, 2-Wire, Sounder, Remote LED Output (400-002) - China Gas Detector, Gas Leak Detector | Made-in-China.com
Kidde Battery Operated Smoke and Carbon Monoxide Combination Detector with Wire-Free Interconnect and Voice Alarm 21027448 - The Home Depot
System Sensor Carbon Monoxide & Smoke Detection COSMO-2w 2 Wire i4 | eBay
D263 Bosch 2 wire Smoke Detector - Obsolete Radionics
System Sensor COSMOD2W 2-wire Smoke CO Detector Interface Module
COSMO2W - System Sensor
2-WIRE,12/24 V, CO/SMOKE COMBO - SS&Si Dealer Network
2 Wire Conventional Optical Smoke Detector for Fire Alarm
Kidde i12010SCO - Combination Smoke & CO Alarm, Lithium Battery Backup
Kidde Firex Smoke and Carbon Monoxide Detector, Hardwired with Battery Backup and Voice Alarm, Adapters Included, 2-Pack 21029889 - The Home Depot
First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup | First Alert
System Sensor Round Carbon Monoxide Gas Detector 4-Wire 12/24V with Real Test CO1224TR - AlarmLiquidators.com
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators - Amazon.com
First Alert SC7010B Hardwired Photoelectric Smoke/Carbon Monoxide Alarm | First Alert
RV Propane Gas and Carbon Monoxide Detector - 12 Volt - 2 Wire - White RV Safe RV Gas Detectors RS34FR
Combo CO/LP Alarm - 2 Wire - White RVCOLP-2W – United RV
Kidde KN-COB-IC (900-0120) (21006406) AC Wire-In Carbon Monoxide Alarm w/ Alkaline Battery Back-up
System Sensor B110LP is a 2-wire base for use with 100 Series smoke detectors.
