?Flammable gases, such as methane and natural gas, can be detected ?It uses high sensitivity gas sensitive semiconductors and a high-performance microprocessor ?Low power consumption. Long lifespan. Sound and light alarm ?Portable and fashionable, constant temperature detection technology using sensitive sensor ?Prevent problems before they happen and detect leaks quickly ?It is suitable for kitchen gas, canned gas, natural gas, gas pipeline network, flange gas station Specification: ?Display mode: LED backlight display ?Inspection range: 50-1000ppm (methane) ?Response sensitivity: 500ppm: about 2 seconds ?Service temperature: 0??C~50??C ?Storage temperature: -10??C~60??C ?Battery: 2*1.5AAA (not included) ?Shell material: ABS Package included: ?1 x Gas Leak Detector ?1 x English User Manual ?Other things not included