Brand new and high quality.<br />Alarm way: Photic and phonic alarm.<br />Light indicator: green (flash when under warm-up state， always bright under working state)<br />Alarm indicate: the red light flash.<br />Alarm state: the red light flash and the buzzer sound (when the gas density been detected  is under the alarm point， the alarm return to inspect state)<br />Reaction gas: coal gas， natural gas， liquid petroleum gas.<br />Power supply: DC 12V<br />Buzzer volume: ≥70dB/m<br />Alarm density: 15%LEL<br />Resume density: 8%LEL<br />Look no further， buy it now!<br />Size: 98 x 38 mm<br />Weight: 138g<br />Static state: consumption <1.3W， alarm <1.7W.<br />Alarm density: LPG0.1%-0.5%， natural gas 0.1%-1%， city coal gas 0.1%-0.5%<br />Work environment: temperature-10℃- +50℃， humidity <90%RH<br />Voltage: AC 110V/AC 220V<br />Alarm volume: >70dB (1.5meters)<br />1 x Detector<br />1 x User manual<br />In original package<br /><img src="http://img6.eachbuyer.com/x19/p4/bf125_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x19/p4/bf125_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x19/p4/bf125_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x19/p4/bf125_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x19/p4/bf125_5.jpg" />