Look no further. Outstanding product quality, that's excceptionally built. Best of all, its very affordable price. Buy one right away.<br />Technical parameters: <br />Gas detected: <br />Combustible gas: natural gas, liquefied gas, coal gas, alkanes, etc.<br />Organic solvent steam: gasoline, alcohol, ketone, benzene, etc.<br />Detection range: 0 ~ 100% LEL <br />Error: ≤ 5% <br />Response time: 10 seconds <br />Power supply: 4x1.5V (AA Alkali high-energy battery)<br />1 x Combustible Gas Detector<br />1 x English User Manual <br />In original package<br /><img src="//agdetail.image-gmkt.com/m430/280/645/620645280/img/agdetail.image-gmkt.com/280/645/620645280/img/img6.eachbuyer.com/x16/p25/bc132_3.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/280/645/620645280/img/agdetail.image-gmkt.com/280/645/620645280/img/img6.eachbuyer.com/x16/p25/bc132_4.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/280/645/620645280/img/agdetail.image-gmkt.com/280/645/620645280/img/img6.eachbuyer.com/x16/p25/bc132_5.jpg" />