Best Natural Gas Alarms

First Alert GCO1 (1039758) Plug-in Combination Explosive Gas and Carbon Monoxide Alarm with Battery Backup

TopTes Guard-101 4 Gas Monitor Multi Gas Detector for H2S, CO, LEL and O2, with Vibration, Visual and Audible Alarms, 14h Long Battery Life, Safety Explosion-Proof, Gas Monitor for Work, Home - Orange

Techamor Y401 Natural Gas Detector, Home Gas Alarm and Monitor, Propane Gas Detector and Gas Leak Alarm for LNG, LPG, Methane, Coal Gas Detection in Kitchen, Home, Camper (1)

TopTes PT199 Gas Leak Detector, Natural Gas Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

TopTes PT520A Natural Gas Detector, Gas Leak Detector with 43.5cm Gooseneck, Locates Sources of Methane, Propane and Combustible Gas Leaks for Home and RV (Includes Battery x3) - Orange

Plug in Carbon Monoxide Detector & Natural Gas Combination Detectors 4in1 CO Gas Temp Humidity Monitor with 2.1'' HD Screen & Indicator CO, Propane, Methane Explosive Gas Alarm

Kidde 900-0113-02 Carbon Monoxide and Explosive Gas Alarm

Natural Gas Detector, Gas Leak Detector, Household Propane Leak Detector, Propane Leak Detector, Natural Gas Leak Detector

Wintact 4 in 1 Gas Leak Detector, Monitor Multi Gas Alarm Sniffers Combustible, Natural, Methane, Propane, Carbon Monoxide, Hydrogen Sulfide, Oxygen for Home, RV, Sewer

Techamor RV Propane Gas Detector, Digital Propane/LP Gas Alarm-12vDC for Motorhome Travel Trailer, Motor Coach, Truck Camper, (R501 Series Flush Mount-Black)