[Upgrade Combustible Gas Leak Detector]- JLY50A is equipped with high-quality sensors, the range is upgraded to 0-10000ppm, with higher measurement accuracy and stability. Its can detect more than 10 types of gas leak including for , methane, ethane, propane, butane, natural gas, coal gas, gas fuel, liquefied natural gas, etc.Protecting your work productivity and family life. [Easy to use]- Ready to use right out of , auto-detect after warming up.With high and low alarm settings, you can switch freely by pressing the button. The sensor has a span of more than 2 years,It is also can be resist to radiation and electromagnetic interference, which protects your safety. [Visual & Audio Gas Alarm]- JLY-50A Natural gas detector equiped with 2x AAA Alkaline Batteries and LCD audible&visual alarms, gas sniff probe when gas leakage is detected, it can send out an alarm alert within 5s while the LCD lights up red. It also has an automatic power-saving function, which will shut down automatically if you do not operate it for 5mins. [Portable Design]- JLY-50A pen-clip design is convenient to place in your chest and back pockets, and the double-side non-slip texture design is also easy to use indoors, outdoor tents, and RV trips. Add a safety for your pleasant traveling. [Usage Environment]- Natural gas leak detector is widely used in home, outdoor sports, RV travel, petroleum, chemical, environmental protection, metallurgy, oil refining, gas transmission and distribution, biochemical medicine, agriculture and other industries. Colour:As Shown Material:plastic Package Contents: 1 x Gas Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.