AS8904 Carbon Dioxide Detector Digital CO2 Sensor Alarm Handheld Gas Detector Analyzer Air Quality Monitor

Features You can set alarm prompts The low concentration and high concentration alarms can be set individually Support sampling pump connection Support the connection of AS8930 sampling pump the detection is more sensitive and the data is more stable Direct charging of lithium battery 3 7V built in lithium battery convenient charging and reliable battery life LCD high definition screen LCD high definition backlight screen clear display more convenient to use at night Specification CO2 measurement range 350 9999ppmResolution 1ppmWorking current 160mAWorking temperature 10°C 50°CWorking voltage 3 7VMaximum open circuit voltage ≤4 2VBattery model KXD N3310Working humidity 15 95 RH standard Storage temperature 0 40°CDisplay Segment LCDWeight 200gSize 120mm 64mm 38mmBattery working time 24 hours 12 hours with sampling pump Package includes 1 x Host1 x Manual1 x Charging head1 x USB charging cable1 x Toolbox1 x Packing boxDetails picture