Basic parameters: Size: 114 mm*55mm*46mm Weight: 105 g Sensor types: electrochemistry method Destination gas: oxygen (o2), toxic or harmful gases (co, h2s, nh3, cl2, etc.) Response time:40s(co) Display: segment lcd, high brightness yellow backlighting Alarm: voice alarm more than 90 db voice alarm (10 cm away from instrument) Light alarm red led Temperature range: - 20 ~ 50 Humidity: 15% ~ 95% rh (no condensation) Battery type: cr2 cr15h270 lithium battery Power supply: 1 high-energy battery (replaceable)
