UNI-T® A25M PM2.5 Meter Air Quality Monitor Temperature Measuring LCD Backlight Celsius /Fahrenheit Unit Switching

Description A25M handheld A25D benchtop A25F benchtop are air quality meters used to measure PM2 5 concentration A25F can also measure formaldehydeconcentration PM2 5 Formaldehyde concentrations display different emoticons on screen to help users visualize their environmental conditions A25 series can be used in homes laboratories offices hotels schools factories conference rooms airports hospitals restaurants and many other public places Features 1 Precise PM2 5 concentration based on pre calibrated sensors2 Temperature measurement °C °F 3 Emoticon display4 LCD backlight and red backlight alarm5 Battery status low power auto power off SpecificationsRangeA25MA25DA25FPM2 5 ug m³ 0 100± 10ug m³ 10dgts ± 10ug m³ 10dgts ± 10ug m³ 10dgts 101 400± 10 30dgts ± 10 30dgts ± 10 30dgts 401 500± 10 50dgts ± 10 50dgts ± 10 50dgts Formaldehyde mg m³ 0 0 6±0 06 mg m³0 6 2±10 Temperature ° 0 2mg m³For reference only±1°±1°Temperature ° 0 2mg m³For reference only±1 8°±1 8°Humidity5 99 RH ±5 RH 30 80 RH≤0 14mg m³ ±25 0 05mg m³±8 RH 30 RH 80 RH≥0 15mg m³ ±50 0 05mg m³FeaturesAuto power off √√√Low battery indication √√√Red backlight alarm √√√LCD backlight √√√Concentration emoticon √√√General CharacterisiticsPowerA25M 520mAh rechargeable polymer battery A25D A25F 1500mAh rechargeable polymer batteryDisplayA25M 35mm x 35mm A25D A25F 42mm x 65mmProduct colorWhite and greyProduct net weightA25M 85g A25D A25F 230gProduct sizeA25M 64mm x 60mm x