TM-280W(WIFI) PM 2.5 Indoor Air Quality Monitor
TM-280W(WIFI) PM 2.5 Indoor Air Quality Monitor NEW-Require
TM-280W(WiFi) PM 2.5 Indoor Air Quality Monitor
- Instant measurement PM2.5.
- Instant clock hour and month display
- Ambient Humidify and temperature measurement.
- When the meter’s WiFi(TM-280W) is turned on, you can use the mobile phone APP to view the PM2.5 real-time and historical data.
- Easy operation from the one button on the top, switch between the function of PM2.5, US AQI or CN AQI.
- 2”TFT LCD display
- Wifi ON / OFF button
- Power supply: 3.7V 18650 2600mA/h rechargeable lithium battery, battery life 8 hours.
- AUTO power off
- Power-saving management: Energy-conservation at night the preset is PM10:00~AM7:00, the function preset is off.
- Six colors bar-graph display correspond to the PM 2.5 AQI index indicate the different levels of health concern.
- Dimension: 84 * 81 * 55 mm
- Weight: about 215g
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Measurement range of particulate matter (PM 2.5) |
0-500 μg/m3 |
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Reaction time |
<10 seconds |
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Temperature measurement range |
-20~50°C (-4~122°F ) |
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Reaction time |
5 seconds (at least) |
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Measurement range of humidity |
1 - 99% RH |
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Resolution |
PM 2.5→1 |
Temperature and Humidity→0.1 |
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Reaction time |
8 seconds (at least) |
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WIFI wireless |
Antenna type |
internal |
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Protocol |
A-MPDU and A-MSDU aggregation and 0.4 µs guard interval support |
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Frequency range |
2.4 GHz ~ 2.5 GHz |
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Lookup Table for AQI and PM2.5 Value
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Air Quality Index (AQI) |
Corresponding PM2.5 Concentration |
Air Pollution Level for Health |
Color Code |
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CN standard |
US standard |
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0 - 50 |
0-35 |
0-12 |
Level 1 (Excellent) |
Green |
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51 - 100 |
36-75 |
13-35 |
Level 2 (Good) |
Yellow |
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101 - 150 |
76-115 |
36-55 |
Level 3 (Lightly Polluted) |
Orange |
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151- 200 |
116-150 |
56-150 |
Level 4 (Moderately Polluted) |
Red |
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201 - 300 |
151-250 |
151-250 |
Level 5 (Heavily Polluted) |
Purple |
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301 - 500 |
251-500 |
251-500 |
Level 6 (Severely Polluted) |
Maroon |