4 gas monitor multi gas detector sound light shock 4 gas meter tester analyzer rechargeable portable gas detector - 2 years detector gealden <b>dear friend, welcome to gealden, our handheld multi gas monitor is definitely the right choice to protect you and your family's health and property</b><br><br> <b>gealden is a business company specializing in the development, production of gas detectors, all of our products are in high quality but very competitive price!</b><br><br> <b>our multi-gas detector used advanced integrated circuit technology, embedded microcomputer control, high quality imported gas sensor, it has excellent sensitivity and excellent repeatability</b><br><br> <b>product parameters:</b><br> comes factory calibrated<br> display error: ≤±5% fs<br> response time: <30s<br> working environment: -20°c~50°c, <95%rh (no dew)<br> power source: dc3.7v li-on battery, 1800mah<br> protection level: ip65<br> gas sensor life: 2 years<br> protection grade: ip65<br> weight: 300g (with battery)<br> dimensions: 140mm×73mm×32mm (l × w × h)<br> charging time: 4h-6h standby time, continuous use for more than 10 hours at full charge<br> indication mode: lcd display real-time data and system status, lighting, vibration and live voice recording (chinese and english) tips<br><br> <b>applicable occasions and crowds:</b><br> robust for industrial use for utility workers, refinery workers, firefighters, maintenance engineers, those who spend time in sewers and waterworks, underground storage tanks, oil rigs, in tanks and silos in the maritime industry, and many others who need personal protective equipment<br><br> <b>100% customer satisfaction. 100% qa by real sensor and gas detector engineer</b><br><br> <b>packing list:</b><br> 1 * detector<br> 1 * user manual<br> 1 * usb cable<br> 1 * plug<br> 1* standard gas hood<br>