["Natural Gas Detector Pen Type Leak Detector Combustible Gas Meter Analyzer Monitor For Home Visible Audible Alarm\n\nThe HT61 gas leak detector can detect all types of combustible gas like methane, propane, natural gas, etc. As the concentration goes up, the audible alarm beep more frequently and the scale add up. Check appliances and piping in your house to pinpoint the precise source of a potential gas leak with the practical mini gas detector.\n\nFeatures:\nGAS LEAK DETECTOR: Detect the presence of all kinds of combustible gas and react very quickly.\nAUDIBLE ALARM: Send out an audible and visual alarm if any gas is detected.\nPRACTICAL FUNCTIONS: High and low sensitivity are switchable for different scenarios.\nEASY TO READ: LCD display with green backlight ensures clear visibility even in the dim light.\nPortable METER: Weighing only 1.69 ounces, measuring 7 by 1.2 by 1.2 inches, compact and lightweight, easy to carry around.\nEASY TO USE: Without complicated instructions, extremely simple to use.\nAUTO POWER OFF: Auto power off after about 10 minutes if there are no operation and measurement signal.\nBATTERY POWERED: Powered by 2 pieces 1.5V AAA batteries.\n\nParameters:\nSensor: Gas-sensitive semi-conductor\nReaction Range: >50PPM (methane)\nWarm-Up Time: Approx. 30 sec\nReactions Time: Approx. 5 sec (<=500PPM), Approx. 2 sec (>500PPM)\nAlarm Mode: Visible and audible\nOperating Conditions: 0℃~50℃ / 20~80%RH\nStorage Conditions: -10℃~60℃ / 20~80%RH\n\nSpecifications:\nMaterial: ABS\nColor: Black and Red\nPower: 2pcs, 1.5V, AAA battery (Batteries Not Included)\nItem Size: 18*3*3cm / 7.08*1.18*1.18in\nItem Weight: 48g / 1.69oz\n\nPacking included:\n1 * Combustible Gas Detector"]