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 Carbon Monoxide Detector 4-wire 12/24 volt C01224T Exp 6-3-2031 | eBay
Kidde Firex Hardwired Combination Smoke and Carbon Monoxide Detector with Adapters and Voice Alarm 21029718 - The Home Depot
4-wire UV flame Detector drop shipping fire alarm system security equipment [CF6002] - $92.00 : China top brand burglar and fire alarm systems, New technology burglar and fire alarm security systems
System Sensor Carbon Monoxide Detector CO1224TR with RealTest 12/24 VDC: Smoke Detectors: Amazon.com: Tools & Home Improvement
System Sensor 4W-B Photoelectric i3 Series Smoke Detector - Advanced Security LLC
Ravel CNG Detector-RE-386ng, For Evacuation
System Sensor COSMO4W 4-Wire CO/Smoke Detector-674172
System Sensor B110LP is a 2-wire base for use with 100 Series smoke detectors.
1430985 Potter CO-1224TR System Sensor 4-Wire Co Detector, Rounder
CO1224TR - System Sensor
541NCXTE - UTC (Formerly GE Security/ESL)
First Alert 10-Year Battery Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
Google Nest Protect Smoke Alarm and Carbon Monoxide Detector, 2-pack | Costco
System Sensor Carbon Monoxide Detector 4-wire 12/24 volt C01224T Exp 6-3-2031 | eBay
Kidde Fire Safety 5-3/4 Inch Diameter, AC Wire In 120 Volt Carbon Monoxide Alarm 85 dB Decibel Rating, 9V Battery Included, Tamper Resistant, Interconnectable 21006406 - 79326062 - Penn Tool Co., Inc