Under $50
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Bluevortex 4-in-1 CO & Gas Detector with Temperature & Humidity
A comprehensive 4-in-1 gas and environmental monitor for continuous, plug-in safety.
Vilfet Dual-Sensor Gas & CO Detector Plug-In
A single plug-in device with dual protection against both natural gas leaks and deadly carbon monoxide.
$50 - $100
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Vilfet 4-in-1 CO & Gas Detector Plug-In (2-Pack)
Comprehensive 4-in-1 safety monitor with clear real-time display and dual alarms for immediate danger alerts.
NICGOL 5-in-1 Natural Gas & CO Detector Plug-in with Battery Backup (2-Pack)
Plug-in gas and CO detector with battery backup for uninterrupted safety.
Kidde Plug-In Carbon Monoxide & Explosive Gas Detector with Battery Backup
Plug-in dual-protection detector with battery backup for CO and explosive gases.