Best Smart Natural Gas Detector

Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display

Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L

TOPTES

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

X-Sense

X-Sense Combination Smoke and Carbon Monoxide Detector with Voice Location, Interconnected Smoke Detector Carbon Monoxide Detector Combo with Base Station (Included), Model XP0A-MR31

TOPTES

TopTes PT520A Natural Gas Detector, Gas Leak Detector with 17-Inch Gooseneck, Locating The Source of Propane, Natural Gas, and Combustible Gas Leak for Home and RV (Includes Battery x3) - Orange

2 Packs Gas & Carbon Monoxide Detectors - Plug in Carbon Monoxide Detector & Propane, Natural Gas Detector, CO Monitor Alarm & Explosive Gas Detector Alarm for Home,RV

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

2 Packs Gas Detector & Alarm - Koabbit Plug in Natural Gas Detectors & Propane Gas Detectors for Home,RV & Kitchen, Combustible Gas Leak Detector Monitor for LNG, LPG, Methane.

Carbon Monoxide Detectors, 4 in 1 Protectmeter Natural, Propane, Methane Portable Traval Gas Leak Detector, Carbon Monoxide Detectors Plug in, Temperature & Humidity Detectors, Digital LCD

Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries