Combination Detectors
Combination detectors pair smoke and carbon monoxide (CO) sensing in a single, space-saving unit to protect homes and buildings. Ideal for property managers, contractors, and facility teams, these devices simplify installation and maintenance while delivering reliable life-safety alerts. Choose from hardwired, battery-powered, and smart-connected models with interconnect capability, UL-listed certification, and battery backup to meet safety codes and reduce risk.
104 Items
1–12
of
104
products
Show:
Sort By:
System Sensor
System Sensor 4WTAR-B Photoelectric i3 Series Smoke Detector, 4-Wire, Thermal Sensor, Built-In Sounder, Form Relay, White
4WTAR-B
In Stock
$92.30
System Sensor
System Sensor 4WT-B Photoelectric i3 Series Smoke Detector, 4-Wire, 135F Fixed Thermal Sensor, White
4WT-B
In Stock
$72.36
System Sensor
System Sensor 4WTR-B Photoelectric i3 Series Smoke Detector, 4-Wire, Thermal Sensor, Form Relay, White
4WTR-B
In Stock
$90.46
System Sensor
System Sensor COSMO-2W i4 Series, 12/24V, 2-Wire, System-Connected, Combination Carbon Monoxide/Smoke Detector with RealTest Technology
COSMO-2W
In Stock
$148.92
System Sensor
System Sensor COSMO-4W i4 Series, 4-Wire CO and Smoke Combination Detector
COSMO-4W
In Stock
$152.68
System Sensor
System Sensor COSMOD4W i4 Series, 4-Wire Interface Module (Required to use with COSMO-4W Models)
COSMOD4W
In Stock
$76.08
AJAX
AJAX 68698.137.BL3 Wireless Combined Heat, Smoke and CO Detector with Replaceable Batteries, Black
68698137BL3
Out of stock
$94.63
BRK Electronics
BRK 1046780 Interconnect Hardwire Smoke and CO Alarm with Battery Backup and Voice Warning, 6-Pack
1046780
Special Order
$406.14
BRK Electronics
BRK 1046789 Hardwired Combo Smoke and CO Alarm with LED Strobe and 10-Year Battery Backup
1046789
Special Order
$138.55
BRK Electronics
BRK 1046879 Interconnectable Ion Smoke and CO Alarm, Bulk Pack
1046879
Special Order
$55.79
Loading more products…
Compare
0 of 3 items selected