Factors Affecting Air Quality
PM2.5 (Particulate Matter 2.5): Refers to fine particles with a diameter of 2.5 micrometers or less. Due to their tiny size, PM2.5 can be absorbed into the bloodstream and lungs. Long-term exposure to high concentrations of PM2.5 can cause eye and nose irritation, cough, asthma, emphysema, lung disease, heart attacks, and cancer.
PM10 (Particulate Matter 10): Refers to particles with a diameter of 10 micrometers or less. Due to their larger size, they are inhalable but penetrate no further than the bronchi, as larger particles are filtered out by cilia and mucus in the nose and throat. PM10 is normally considered less harmful to health than PM2.5.
CO2 (Carbon dioxide): Is a colorless and odorless gas usually derived from the breath of humans and animals. High CO2 concentration indicates that fresh air or ventilation is required. Otherwise, it may cause problems such as drowsiness, dizziness, loss of attention, and cognitive impairment.
Important!
- Do not place the detector in highly polluted environments (concentration of CO2 > 2500ppm or particles > 500µg/m³) for extended periods to avoid sensor damage.
- Do not cover the air inlet/outlet during detection, or allow fluff or hair to enter the detector.
- Do not use the detector in humid environments with strong odors.
- Avoid contact with organic solvents such as glue, adhesives, paint, or alcohol.
- If the battery level indicator shows low, please charge the detector promptly to avoid effects during use (charging is possible even when turned off).
Overview
The device features a handheld design with the following labeled components:
- 1. Buzzer Status indicator
- 2. Measuring Status indicator
- 3. Display screen
- 4. Menu Button
- 5. Increase/Up Button
- 6. USB Port
- 7. Date & Time display
- 8. Power Level indicator
- 9. Back Button
- 10. Power/OK Button
- 11. Decrease/Down/Switch (Start/Pause) Button
Operation:
Warning!
- First use or long disuse: Place the detector outdoors for over 6 hours for calibration.
- Indoor use: Keep the room/area airtight for 10 minutes to obtain more accurate results.
- CO2 sensor calibration: Adjust the detector to the calibration interface and place it outdoors in a cool, ventilated place for 30 minutes for more accurate results.
Turning ON: Press and hold the Power/OK button [▶️] for 2 seconds to turn on the detector.
Operation Details
Detection
Press the Menu button [≡] to enter the main menu interface. From there, you can navigate using the Up/Down buttons [▲/▼] to select options like 'PM2.5', 'CO2', 'View all info', 'History', or 'Set', and press the OK button [✔️] to confirm.
The main menu options include:
- View or set particles/CO2 levels
- View all detected information
- Check data records
- Set date, time, alarm value, help document, reset to default, and language
Note: It takes about 3 minutes for the CO2 sensor to warm up before detection status can be viewed.
View or Set PM2.5/CO2
In each interface (e.g., CO2), pressing the Menu button [≡] displays more functions. For example, in the CO2 interface, you may see the following options:
- a. Pause measuring: Pause or restart detecting CO2.
- b. Turn on alarm sound: Mute [?] or Unmute [?] the buzzer.
- c. Display the data: Display (or not) CO2 concentration curve.
- d. Alarm value setting: Set the high alarm limit. Operation: Press the Up or Down button [▲/▼] to adjust the value and press the Menu button [≡] to switch digits. Then press the Save button [?] and OK button [✔️] to save the setting and exit, or press the Exit button [❌] to exit without saving. The screen shows 'Alarm value setting', the current value (e.g., '0700 PPM'), and prompts to 'Press the Up or Down button to set the current value, press the Menu button to switch to the next item.'
- e. Calibration zero: Calibrate the sensor to zero (this function is not available for the PM2.5 interface). For the CO2 interface, the screen shows 'Sensor under calibration' with a progress percentage (e.g., '6%') and prompts to 'Please put the sensor outdoors for 5 minutes until its calibration is finished.' An 'Exit' option is also present.
- f. EXIT: Exit the current interface.
View all info
The 'View all info' interface displays all detected data, including concentrations of PM2.5, PM10, CO2, number of particles, temperature, and humidity. Press the Menu button [≡] to switch between °C and °F readings.
The display shows readings like:
- PM2.5: 116.4 ug/m³
- PM10: 182.9 ug/m³
- Particles: 12508 Counts/L
- CO2: 679 ppm
- Temperature: 75 °F
- Humidity: 35%
Press the Switch button [▶️] to pause or detect; press the Back button [↩️] to return to the main menu.
History
The 'History' interface includes 'Storage interval' and 'Data export' functions.
Operation: Press the Up or Down button [▲/▼] to switch between 'Storage interval' and 'Data export', then press the OK button [✔️] to enter the corresponding interface.
Storage interval
Press the Menu button [≡] to switch between digits. When a digit is selected, press the Up or Down button [▲/▼] to adjust the value to your desired storage interval (1, 5, 10, 30, or 60 minutes). Then, locate the 'Save' option and press the OK button [✔️] to save the setting and exit. Alternatively, locate the 'Exit' option and press the OK button [✔️] to exit without saving.
The 'Interval' setting screen shows 'Interval(min)' with an editable value and prompts to 'Press the Up or Down button to set the current value, press the Menu button to switch to the next item.' Options are 'Save' and 'Exit'.
Data export
In this interface, you will see prompts indicating the instrument's status regarding USB connection.
If connected successfully via USB cable, the detector will display 'USB connection successful! Please do not disconnect the USB during the connection. If you want to exit the USB connection mode, press the 'Back' button!'
If the connection fails, it will display 'No USB connection detected!'
After data is copied and viewed, the detector can be exited from USB connection mode by pressing the Back button [↩️].
The exported data can be viewed in a CSV format file on your computer. A sample data table includes:
| Date | PM2.5 | PM10 | CO2 |
|---|---|---|---|
| 2019/10/28 | 6 | 10 | 2038 |
| 2019/10/28 | 7 | 11 | 1795 |
| 2019/10/28 | 8 | 14 | 1914 |
The screen may show 'Successfully exit the USB connection; please wait!'
Set
The 'Set' interface displays 5 options. Operation: Press the Up or Down button [▲/▼] to select the desired option and press the OK button [✔️] to enter the interface.
- a. Date and time: Allows customized setting of year, month, date, and time. Operation: Press the Up or Down button [▲/▼] to adjust time and press the Menu button [≡] to switch to the next digit. Then press the Menu button [≡] to switch to 'Save' or 'Exit'. Press the OK button [✔️] to finish the settings and exit. The screen shows the current date and time, with options to 'Save' or 'Exit'.
- b. Alarm value: Set high alarm limit for PM2.5 or CO2 concentration. Operation: Press the Up or Down button [▲/▼] to set the high alarm limit for PM2.5 or CO2 concentration and press the Menu button [≡] to switch to the next digit. Then press the Menu button [≡] to switch to 'Save' or 'Exit'. Press the OK button [✔️] to finish the settings and exit. The screen shows 'Alarm' with PM2.5 and CO2 values, and options to 'Save' or 'Exit'.
- c. Help: View help information for using the detector. Operation: Press the Up or Down button [▲/▼] to view the information that helps you use the detector; press the Menu button [≡] to go back to the 'Set' interface. The 'Help' screen provides text information, and a 'Page Down' option is available. The 'Set' interface shows 'Date and time' and 'Restore' options.
- d. Restore: Reset to the default parameters. Operation: Press the Menu button [≡] to switch to 'Restore' or 'Exit'. Press the OK button [✔️] to confirm the settings and exit the interface. If reset, all customized settings will automatically revert to default.
- e. Language: Set Chinese or English as the displayed language. Operation: Press the Menu button [≡] to switch between Chinese and English, press the OK button [✔️] to confirm. Then press the Menu button [≡] again to switch to 'Save' or 'Exit'; press the OK button [✔️] to finish the settings and exit. The 'Language' screen shows '中文' (Chinese) and 'English' options, with prompts to 'Switch on the Menu button and press OK button to make a confirmation.' Options are 'Save' and 'Exit'.
Multipoint Detection
Repeat detection at multiple points in the targeted area to gain a more comprehensive understanding of your air quality.
OFF
Under normal operating status, press and hold the Power/OK button [▶️] for 2 seconds to turn off the detector. It will automatically turn off after 1 hour of inactivity.
Note: Auto-off function is invalid in the Histogram interface.
Specifications
| Model | M2000C 2nd |
|---|---|
| Dimensions | 223.5x73.5x37.5mm / 8.8x2.8x1.4in. |
| Battery capacity | 3000mAh |
| Battery life | 6-8h |
| Input | DC5V; 1A |
| Display | TFT color screen |
| Operation environment | Temperature range: 0-50°C (32-122°F) Humidity range: 0-90% RH Atmospheric pressure condition: 1atm |
| PM2.5 | Sensor: Laser PM sensor Measuring range: 0-999 µg/m³ Resolution: 0.1 µg/m³ Accuracy: ±10 µg/m³ (0-100 µg/m³), ±10%(100-500 µg/m³) |
| PM10 | Sensor: Laser PM sensor Measuring range: 0-999 µg/m³ Resolution: 0.1 µg/m³ Accuracy: ±15 µg/m³ (0-100 µg/m³), ±15%(100-500 µg/m³) |
| Carbon dioxide (CO2) | Sensor: Non-Dispersive Infrared (NDIR) CO2 sensor Measuring range: 0-5000 ppm Resolution: 1ppm Accuracy: ±(50 ppm + 5% reading) |
FAQ
Q: Why is the data reading very high/over-range after the detector is turned ON?
A: As being packed in ink printed package box over time may interfere with the sensor due to the remaining organic volatile residue inside the package. Therefore, after unpacking, please put the detector in a ventilated place to help accelerate its data recovery.
Q: Why is data reading unstable?
A: As airflow in the environment is changing, the distribution of organic matter concentration may be uneven. Temtop recommends trying again in low airflow areas.
Q: Why is the test result abnormal or below normal?
A: 1. Please check whether the air inlet or outlet has been covered or fluid is in. 2. Gently shake the detector during detection to increase the interaction with surrounding air. 3. The sensor may be not recovered. Please place the detector outdoors for ventilation.
Q: Can the calibration be accelerated if the detector is facing the outlet of air conditioner / fan?
A: No. The temperature difference or air flow speed at the air conditioner/fan outlet is relatively high, which may cause condensation or temperature changes on the sensor, affecting its detection performance. Please put the detector outdoors in a cool ventilated place.
Q: Why is the PM2.5 reading constantly changing?
A: As PM2.5 concentration in the environment is changing all the time, not only due to environmental factors like changes in airflow, humidity, wind direction, etc., but also due to common pollutant sources like smoking, cooking, exhaust emissions from vehicles, smoke from burning coal/chimneys/furnaces, etc. All these may influence the PM2.5 concentrations and give differences in the readings.
Q: Which reference standards have been used to indicate the pollution levels?
A: Reference Standards for Particles and CO2 are showing below.
| Status | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
|---|---|---|---|---|---|---|
| Pollutant | ||||||
| PM2.5 (µg/m³) | ≤12 | 12.1~35.4 | 35.5~55.4 | 55.5~150.4 | 150.5~250.4 | ≥250.5 |
| PM10 (µg/m³) | ≤54 | 54.1~154 | 154.1~255 | 255.1~354 | 354.1~424 | ≥425 |
| CO2 (ppm) | ≤700 | 701~1000 | 1001~1500 | 1501~2500 | 2501~5000 | ≥5001 |
What's Included
- Detector: x 1
- USB Cable: x 1
- User Manual: x 1
Warranty
Temtop warrants the included item for 1 year from the date of original purchase. The item can be exchanged or returned within 30 days if the defect is not caused by artificial damage.
| Item | Warranty Period | Service Mode |
|---|---|---|
| Detector | 1 year | Send to us |
| Accessories | N/A | N/A |
Before returning or sending for repair, please check if the following items are ready:
| Detector & Accessories | Complete Package | Proof of Purchase* | Gift (if any) | |
|---|---|---|---|---|
| Return | ✔️ | ✔️ | ✔️ | ✔️ |
| Exchange | ✔️ | ✔️ | ✔️ | |
| Repair | ✔️ | ✔️ |
* Including invoice, order number etc.
Temtop warranty does NOT include:
- Malfunction or damages caused by artificial damage or modification
- Other deliberate damages.
- Damages caused by force majeure events.
Contact Information
Elitech Technology, Inc.
2528 Qume Dr, Ste 2
San Jose, CA 95131 USA
Tel: +1 408-898-2866
Sales: sales@temtopus.com
Website: www.temtopus.com
Elitech (UK) Limited
Unit 13, Greenwich Centre Business Park
53 Norman Road, London, SE10 9QF UK
Tel: +44 (0)208-858-1888
Sales: sales@elitech.uk.com
Website: www.elitecheu.com
Elitech Brasil Ltda
R. Dona Rosalina, 90 - Igara, Canoas - RS, 92410-695, Brazil
Tel: +55 (51)-3939-8634
Sales: brasil@e-elitech.com
Website: www.elitechbrasil.com.br
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