Shopping from Canada? 
Go to Defender Canada!
4th of July Sale
-
10% off
Fireboy CMD6 Marine Carbon Monoxide Alarm with Internal Battery
$133.19 -
10% off
Fireboy CMD6 Marine Carbon Monoxide Alarm
$136.79 -
10% off
MTI Industries Safe-T-Alert 62 Series Carbon Monoxide Alarm
$69.29 -
Up to 10% off
MTI Industries Safe-T-Alert 45 Series Dual Carbon Monoxide/Propane Alarm
$92.69 - $97.19 -
Up to 10% offMTI Industries Safe-T-Alert FX-4 Carbon Monoxide Alarm
$77.39 - $133.19 -
20% off
Fireboy CMD6 Marine Carbon Monoxide Alarm Interconnect
$135.99 - $152.99 -
10% off
Fireboy CMD6 Carbon Monoxide Alarm with Internal Battery/Relay & Interconnect
$156.59 -
Up to 10% off
MTI Industries Safe-T-Alert 25 Series Dual Carbon Monoxide/Propane Alarm
$77.39 - $186.29 -
10% off
MTI Industries Safe-T-Alert SA-340 Sealed Battery Carbon Monoxide Alarm
$66.59 -
Up to 10% off
MTI Industries Safe-T-Alert 35 Series Dual Carbon Monoxide/Propane Alarm
$92.69 - $178.19 -
Up to 15% offFireboy Methane Fume Detector LED Display
$612.84 - $730.79 -
Up to 10% off
Fireboy Methane Gas Sensor
$180.89 - $255.59 -
Up to 10% off
MTI Industries Safe-T-Alert 85 Series Dual Carbon Monoxide/Propane Alarm
$65.69 - $68.39 -
Up to 10% offFireboy MS-3 Methane Gas Sensor Extension Cable
$69.29 - $181.79 -
10% offMaretron Gas Fume Detector - CO-CO1224T
$209.69 -
10% offFireboy MS-2 to MS-3 Methane Gas Sensor Connector Cable - 10' Cable Extension
$46.79 -
10% offFireboy 3-Sensor Methane Gas Detection Sensor Splitter - SPLITTER04-3
$292.49 -
10% off
Fireboy 2-Sensor Methane Gas Detection Sensor Splitter with Boots - SPLITTER01-D
$247.49 -
10% off
Fireboy 2-Sensor Methane Fume Detector LED Display
$648.89 -
10% offFireboy Methane Gas Sensor Test Kit
$1,190.69 -
10% offFireboy Methane Gas Sensor Test Kit Replacement Cylinder - 34 L
$286.19