Tm-280 Rechargeable Indoor Air Quality Monitor Measure Particulate Matter Pm 2.5 Temperature Humidity Pollution Detector Pollutant Tester

SKU: GEX-US-31714318057527
  • 1 x Air Quality Monitor
  • 1 x USB AC to DC adaptor, 5V/1A
  • 1 x USB cable (for charging use)
  • English Instruction Manual
  • Standard Factory Packaging
Unit Price
US$ 154.37
US$ 154.37
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PM 2.5 Indoor Air Quality Monitor is designed with a laser particulate matter sensor and high-precision humidity/temperature sensor.

PM2.5 is: pollutants existing in the air, where the dust-like particles floating in the air are called particulate matter (PM). The particles smaller than or equal to 2.5 microns, i.e. PM2.5 is commonly known as particulate matter in units of μg/m³.


  • Clear 2”TFT LCD Display
  • Instant measurement of PM2.5
  • Low power indicator
  • Date and time display
  • Humidity and temperature display
  • Switchable temperature unit
  • Automatic power off depending on external power input
  • EMC: EN61326-1:CISPR 11:Group 1, Class B
  • Six colors bar-graph display correspond to the PM2.5 AQI index indicate the different levels of health concern
    • Level 1 (Excellent) Green
    • Level 2 (Good) Yellow
    • Level 3 (Lightly Polluted) Orange
    • Level 4 (Moderately Polluted) Red
    • Level 5 (Heavily Polluted) Purple
    • Level 6 (Severely Polluted) Maroon
Shipping from
This product is shipped from our supplier's warehouse in Hillsboro, OR, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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