Description K6 B K6 D Digital Multifunctional Gas Analyzer Air Quality Tester Indoor Outdoor CO2 Meter HCHOTVOC Detector MonitorSpecification ItemDigital Air Quanlity DetectionModel 1 K6 B 2 K6 D Can be detecting CO₂ MaterialABSColorWhiteMeasure MediumPM2 5TVOCHCHOCO₂ Test FunctionPM2 5 PM1 0 PM100 3um 0 5um 1 0um 2 5um 5 0um 10um number of particlesTVOC HCHO CO₂TemperatureHumidityPM2 5 Test Range0 6000g m⊃3Temperature Test Range 9 55°Humidity Test Range0 100 TVOC Test Range0 000 2 000mg m⊃3 K6 D K6 B HCHO Test Range0 000 2 500 mg m⊃3 K6 D K6 B CO₂ Test Range400 4000ppm K6 D Detection TechniqueSemiconductor Sensing TechnologyWorking Temperature 9° 55°Relative Humidity80 HRBattery1 3 7V 600mA Li ion Battery Built in Input5V 1ADateTime SettingUsers can set the current date and timeAdjustable Automatic Shutdown Time Setting Range10 Minutes 18 HoursAdjustable Backlight Brightness Setting10 100 Historical Data SettingsUsers can view historical data saved by the systemMaximum Storage Management Space65 534pcs Adjustable Timing Storage Settings10 Minutes 18 HoursAdjustable Timing Screen Switching Settings10 Seconds 600 Seconds Weight232g 8 2ozSize100 x 58 x 78mm 3 9 x 2 3 x 3 1 Instructions for use Startup shutdown The button on the right side of the productis the power switch key press button for 1 second starting up after starting up you can shut down by pressing the button 2 seconds Functional use After starting up you can switch