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

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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.

Features: 

  • 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


Specifications:

  • Particulate matter (PM 2.5)
    • Range of : 0~500μg/m³
    • Resolution: 1
    • Resolution: <10 seconds
    • Accuracy: ±5μg (≤50μg) , ±10% reading (>50μg)
  • Temperature measurement
    • Range: -20~50°C (-4~122°F)
    • Resolution: 0.1
    • Reaction time: 5 seconds (at least)
    • Accuracy: ±2°C (3.6°F) no external power supply
  • Humidity measurement
    • Range: 1~99% RH
    • Resolution: 0.1
    • Reaction time: 8 seconds (at least)
    • Accuracy: ±3% RH: (20~80% RH @25°C), ±5% RH: other @25°C
  • Operating altitude: up to 2000M
  • Long-term use mode: Auto shut down will be disabled when connecting to an external power input
  • Auto power off: Automatically shut down after 60 minutes in case of no
    external power input
  • Power supply: rechargeable lithium battery of 3.7V 18650 2600mAh
  • Battery life: approximately 9 hours for continuous use
  • Operating environment: Indoor use; Pollution degree 2
  • Operation temperature and humidity: 5~40°C; <80%RH (no condensation)
  • Storage temperature and humidity: -5~40°C, <70%RH (no
    condensation)
  • Dimension: 84 x 81 x 55mm (L×W×H)
  • Weight: approximately 215g (battery included)

Set Includes:

  • 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


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