Tenmars PM 2.5 User manual

PM 2.5Indoor Air Quality Monitor
(Particle Air Quality Detector)
TM-280W
User’s Manual
HB2TM280W001

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Contents
1. Introduction.............................................................................................3
2. Accessories............................................................................................4
3. Safety Precaution...................................................................................5
4. Instrument Description............................................................................6
5. Operation................................................................................................7
5.1 Turning on......................................................................................7
5.2 Switching the temperature unit.......................................................9
5.3 Turning on and turning off the wireless connection.......................10
6. Steps for network pairing......................................................................11
6.1 APP application software installation............................................11
6.2 Register an Account.....................................................................12
6.3 User login.....................................................................................13
6.4 Connection confirmation...............................................................14
6.5 Operation settings........................................................................25
6.6 Alarm setting................................................................................27
6.7 Alert Notification...........................................................................27
7. General Specifications..........................................................................28
8. Electrical specifications.........................................................................29
9. Maintenance......................................................................................... 30
10. Cleaning...............................................................................................30
11. Product Disposal ..................................................................................30

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1. Introduction
The PM 2.5 Air Quality Monitor is designed with a laser particulate matter
sensor for and a high-precision humidity/temperature sensor.
PM2.5 is:
A lot of pollutants existing in the air, where the dust-like particles floating in the
air are called particulate matter (PM). Distinguishing particle size, 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. With the diameter less than 1/28 of human
hair thickness, the particles are so fine as to penetrate the alveoli, enter the
blood vessels directly, and even circulate throughout the body via the blood.
Therefore, the impact on the human body and ecology cannot be ignored.
The regulations for PM2.5 in Taiwan:
The Air Quality Act of Taiwan Environmental Protection Administration
stipulates that the average value shall not exceed 35μg/m3within 24 hours.
The standard adopted by Taiwan is the same as the standard of theUS,please
refer to the US AQI if to view the AQI in Taiwan.

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Lookup Table for AQI and PM2.5 Value
AQI is :
The acronym of Air Quality Index, a new indicator for the ambient air quality,
and used to describe the status of air quality.
2. Accessories
1Instrument ( Built-in 18650 Rechargeable Li-ion Battery)
1USB AC to DC adaptor, 5V/1A
1USB cable (for charging use)
1User's Manual
Air
Quality
Index
(AQI)
Corresponding PM2.5
Concentration
Air Pollution Level for
Health Color Code
CN
standard US standard
0
-
50
0
-
3
5
0
-
12
Level 1 (Excellent)
Green
51 - 100 36-75 13-35 Level 2 (Good) Yellow
101 - 150 76-115 36-55 Level 3
(Lightly Polluted)
Orange
151- 200 116-150 56-150 Level 4
(Moderately Polluted)
Red
201 - 300 151-250 151-250 Level 5
(Heavily Polluted)
Purple
301 - 500 251-500 251-500 Level 6
(Severely Polluted)
Maroon

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3. Safety Precaution
Caution! Please refer to this manual.
Improper use may damage the meter
and its components.
Complies with European Directive.
Do not operate in environments with flammable gas or humid
environments.
Operating altitude: up to 2000M.
Operating environment: Indoor use; Pollution degree 2.
Clean with soft cloth when dirty, such as glasses cloth. Do not clean with
chemicals and other solvents.
For the qualified low-power radio-frequency devices, the company, shop,
or user may not unauthorizedly change the frequency, increase the power
or change the characters and functions of original design without
permission.
The use of qualified low-power radio-frequency devices shall not either
affect flight safety nor interfere with legitimate communications. If
interference found, deactivate the devices immediately and improve until
no interference occurs, then it can just be used.
EMC: EN61326-1:CISPR 11:Group 1, Class B
Class B – Equipment for use in all establishments other than
domestic.
Group 1 – RF energy generated is needed for internal functioning.

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4. Instrument Description

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5. Operation
5.1 Turning on
Press and hold the power button for
more than two seconds to turn on;
flashing indicates the wireless
router is on connecting, and no
more flashing indicates the
connection completed.
With a USB power cable plugging
in, the auto turn-on function can
be also enabled, while charging at
the same time (the specification
of charging transformer is 5V/1A).

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Press the power button to sequentially select the display mode of PM2.5 
US AQICN AQI.
PM2.5 US AQI CN AQI

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5.2 Switching the temperature unit
Poke the SET hole on the rear with a SIM card pin or paper clip for switching
between °C and °F.