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AZ-7201 Handheld Propane Test Gas Leakage Tester Methane Gas Leak DetectorNewegg$18.42
10 PCS MQ5 liquefied Gas Methane Gas Sensor Combustible Gas Detection MQ-5Amazon$29.46
Hot SMART SENSOR AS8800L Combustible Gas Detector Flammable Natural Gas Leakage Tester Tool Methane Gas Leak Detector AnalyzerNewegg$23.99
PANGAEA Gas Detector Portable Natural Gas Tester Detector, Combustible Propane Methane Gas Sensor Sniffer (with Batteries)AmazonSAVE $3.00
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YK-818 55 Natural Gas Detector Leak Alarm Sensor Butane Methane Gas Monitor, Voice Prompt, Strobe Light Warning, Digital Display (White, No Battery)Amazon$12.99
Cartoon Cute Red Lighter,Creative and Cool Design,Lighter Adjustable Flame Windproof,Personalized Lighter for Gifts for Girl,Birthday, Outdoor,Barbecue (No Methane Gas) (d0)Amazon$60.00
Norlab Methane Gas Cylinder-1971, 99.0% Pure, 17L (P)Global Industrial$7.99
MQ-7 Smoke Detection Liquefied Methane Gas Sensor Module for-Arduino Carbon Monoxide SensorAmazon$238.00
Crepe Machine, 15.7 In Commercial Crepe Maker Machine, Methane Gas Spring Roll Maker, Pancake Big Hotplate Non Stick, Ideal for Business, Get-Togethers, Egg Pancakes, Hot DogsAmazon$19.79
Natural Gas Detector, Plug-in Natural Gas Alarm and Monitor for Home, Kitchen or Camper, Propane Methane Gas Leak Detector Monitor with Voice Warning & Digital Display - 1 PackAmazon$175.00
Norlab Methane Gas Cylinder-1971, 2.5%, Bal Air, 103L (J)Global Industrial$16.88
MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Smoke Detection liquefied Methane Gas Sensor Module for Arduino (9pcs)Amazon