Indoor Air Quality Meter Formaldehyde TVOC pm2.5/pm10

It engages the high-quality sensing elements to provide precise & reliable readouts. Four (4) levels of LED signal indicators on the front panel are equipped to present the condition of air quality in accordance with the level of measurements, along with the high-frequency audible alarm. It certainly provides a good indication of how healthy of your environment you are living in.

Why are these measurements important?

  • PM stands for particulate matter, also called particle pollution. It is a mixture of solid particles and liquid droplets found in the air such as dust, dirt, soot or smoke. Particle size less than 10 micrometers in diameter may cause serious lung problem or even into the bloodstream.
  • Formaldehyde, officially named as Methanal. It is a prominent factor in sick-building syndrome as its emissions irritate eyes and mucous membrane in nose and throat, and cause a headache and dizziness.
  • TVOC is present as a gas or vapor format which can enter the human body by inhalation. It may build up in indoor environments with a lower rate of ventilation. By breathing this contaminated air, it will lead to loss

A related article “How healthy of your environment you are living in?“.

  • Measurement of air pollution in PM2.5 & PM10 particle size, Formaldehyde concentration, Total Volatile Organic Compounds (TVOC), air temperature and relative humidity in one single device
  • 4 levels of air quality LED indicator – Optimal (Green), Good (Green), Pollution (Yellow), Serious (Red)
  • Sizeable LCD display with visible LED backlight for low light intensity environment
  • Build in audible alarm
  • Top quality & precise internal sensors
  • Power saving mode
  • Low battery indicator
  • Restoration of factory original setting to enhance its accuracy
Air Quality Measurement
ElementRangeResolutionAccuracyMean Value
PM2.50 ~ 500 µg/m31±1Every 60 minutes
PM100 ~ 999 µg/m31±1Every 30 minutes


0 ~ 99.99 mg/m30.001±2%Every 60 minutes
TVOC0 ~ 99.99 mg/m30.001±2%Every 60 minutes
Temperature measurement-15~50 °C (5~122 °F)
Humidity measurement15 ~ 90 %RH
Date & Time displayYes
DisplayLCD display with LED backlight
AlarmAudio & LED alarm indicators
HousingABS plastic
CalibrationRestore to factory setting applicable
Power supply3 x 1.5V AA batteries / 5V Power adapter
Dimensions130 × 83 × 53 mm
Weight180g (without battery)
  • 1 x Desktop Indoor Air Quality Meter
  • 1 x USB 5V Power Adapter with Cable
  • 3 x 1.5V AA Batteries
  • 1 x Instruction Manual
  • 1 x Standard Factory Packing


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