Best Natural Gas Sensors

FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button

Kidde 5DCO 10 Year Life Battery Powered Digital Display Carbon Monoxide Alarm

Natural Gas Detector, TopTes PT205 Gas Leak Detector with Audible & Visual Alarm, Propane Leak Detector with%LEL Value of Methane, Butane, and Combustible Gas for Home, RV (Includes Batteryx2)-Orange

Natural Gas Detector, Plug-in Propane Natural Gas Leak Detector for Home Kitchen RV, Combustible & Explosive Gas Alarm for LPG, LNG, Methane

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

Gas Detector, LPG | Natural Gas | Coal Gas Leak Detector, 3-Pin Plug-in Sensor Gas Monitor with Sound Alarm and LED Display, Methane Propane Butane Combustible Gas Alarm for Kitchen Hospital Garage

Carbon Monoxide Detector Portable with Digital LCD Display, Carbon Monoxide Alarm, Replaceable Battery CO Alarm Detector, 10 Years Life, Suitable for RV, Bedrooms, Compliant with EN 50291, 1 Pack

TopTes PT210S Gas Leak Detector, Natural Gas Detector with 10cm Probe, Propane Leak Detector Locating Combustible Gases Like Natural Gas, Methane for Home, Measures%LEL (Incl. Batteries) - Orange

Gas Detector, Natural Gas/LPG/Coal Gas Leak Aalrm, 3-Pin Plug-in Sensor Gas Monitor with Sound Alarm and LED Digital Display, Methane Propane Butane Combustible Gas Alarm for Kitchen Garage Hospital

Natural Gas Detector, TopTes PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane,Propane for Home (Includes Battery x2)-Orange