Propane / Natural Gas Detector, Home Gas Alarm; Leak Tester, Sensor; Monitor Combustible Gas Level: Methane, Butane, LPG, LNG; Voice / Light Warning & LED Display, Prevent Fire Explosions; eBook

As the only US based retailer selling this item, we have a chemist on staff to answer any technical questions. We also include a 20+ page eBook on Gas & Air Quality Hazards that is emailed after purchase. Home Safety Help reduce your worries of leaving the stove on with this combustible gas siren & speaking voice alarm with continuous concentration monitoring and LED readout. Help protect your family from suffocation dangers and your home from explosive hazards with this device. Detection levels ranges from 0% to 20% of LEL for multiple combustible gases including methane, propane, butane, coal gas, town gas, LPG Liquid Petroleum Gas, LNG Liquid Natural Gas. See displayed gas levels in % LEL go up before the alarm sounds at 5% of LEL, with 100% LEL being the minimum gas level for fires. Place alarm near ceiling for natural gas and near floor for propane/butane. Testing/Tips: -Due to added odorants, people can often begin smelling a gas leak at 1% LEL whereas available retail gas alarms set an alarm threshold of 5%-25% LEL to avoid frequent false alarms. Do not be alarmed if you smell gas before the device alarms. -Every couple weeks, test your alarm with unlit butane from a cigarette lighter or propane source. -Item undergoes self-test warmup sequence for 3 min on startup. -Avoid placement where airborne contaminants like cooking oils can coat and decrease sensor sensitivity. If you are ever not satisfied with your purchase, please email us and we will make things right! Product Specifications: Power: AC 110-240V Area of Usage: Household, Camper Alarm Set Point: 5% of LEL Body Material: ABS Plastic Power: <3.0W Working temperature: 0 to 55°C Environment humidity: 0 to 95% Package Contains: 1 Gas Detector w/ 6 feet AC cord 2 Mounting Screws for Detachable Backplate Double-sided Adhesive Mounting Tape Patch User Manual