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Temtop P20 Household PM2.5 Air Quality Monitor

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    Shipping within 24 hours. Free Standard Shipping in US: 3-5 Days for delivery. Fast Worldwide DHL Shipping.


    Not the right fit? No worries. We'll arrange pick up and a full refund within 7 days including the delivery fee.


    Quality comes first and our products are designed to last.

 Air Quality Monitor Temtop P20 For PM2.5/Temp/Humidity

Air Quality Monitor measure particulate matter 2.5

Multipurpose device  3-IN-1 indoor air quality, monitor accurately temperature in Celsius and Fahrenheit, also measure humidity level and the concentration of³ with a chart to monitor the level of PM2.5 in the last 12h hours.  It is a portable testing device and can be used a wall-mounted at home or with table support anywhere in the house, office, school etc... With a 24-hour monitoring histogram, you will see the changes of PM2.5 directly. Free shipping in USA. Worldwide fast shipment. 24/7 Online Support.

Key Feature:

  • 3 in 1 Thermometer, Hygrometer and PM2.5 Air Quality MonitorAccurately tells you temperature & humidity and PM2.5 values, current date and time, ideal for the management of room, office, hotel, laboratory and hospital.
  • Max & Min RecordsDigital thermometer displays MAX & MIN humidity, temperature(/℃ Optional) and PM2.5 records in real-time; also shows the PM2.5 histogram in the past 12 hours, allowing you to adjust thermostat or humidifier or air purifier in time.
  • Air Comfort IndicatorSmart design with face icon indicates the surrounding air condition for PM2.5 (GOOD/FAIR/POOR)and humidity(DRY/COMFORT/WET).
  • Data ExportComes with a USB cable, makes it accessible to export the history data to your computer for further analysis.
  • Easy to Use: Built-in 3000mAh rechargeable lithium battery that runs about 6-8 hours on a full charge.
  • 1-year warranty.


 Dimensions: 6.9 x2.6 x 1.2 in.
Battery capacity: 3000mAh
Battery voltage:  3.7 VDC
Battery life: 6-8h on a full charge
Input voltage/current:  DC5V, 1A
Operating environment: 0-50℃(32-122℉); 0-90%RH
Atmospheric pressure:  1 atm standard atmosphere
Temperature measuring range: 0-50℃(32-122℉)
Accuracy:  ±1℃(±1.8℉)
Humidity measuring range: 0-90%RH
Accuracy:  ±5%RH
PM2.5 Sensor:   Laser particulate matter sensor
Measuring range:   0-999ug/m³
Resolution: 0.01 ug/m³(0-9.99ug/m³);0.1 ug/m³(10-99.9ug/m³);1 ug/m³(100-999ug/m³)
Accuracy: ±5 ug/m³(0~100 ug/m³);±10%(100~500 ug/m³)

User Manual:  

What is included

  • P20 Laser Particle Detector
  • 1*USB Cable
  • 1*User Manual
  • 4*Seamless Nail
  • 1*Seamless Nail Label


  • Do not place the detector in a highly polluted environment (particle concentration > 500ug/m') for a long time; or it may cause damages to the sensor.
  • Do not cover the air inlet/outlet during detections; or let fluff or hair enter the detector.
  • Do not use the detector in humid places or environments with a strong odor to maintain accuracy.
  • Do not disassemble the detector or change its internal wiring to avoid potential damages.
  • Do not use the detector in direct sunlight or facing air conditioner outlets and etc.


Q: Why is the PM2.5 reading not matching with the government departments or other organizations?

A: The PM2.5 data computed by government departments or other organizations are the average data values from multi-monitoring points. Hence it is common that the PM2.5 reading at your place/location is different from theirs.

Q: Why is the PM2.5 reading keeps changing?

A: As PM2.5 concentration in the environment is changing all the time. That not only due to the environmental factors like changes in airflow, humidity, wind direction and 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 concentration and give differences in the readings.

Q: How to understand the changes in the PM2.5 HISTORY area?

A: This area shows the changes in PM2.5 concentration over the last 12 hours in a histogram; wherein, the x-axis indicates the time and the y-axis indicates concentration: higher the PM2.5 concentration, higher the v axis (up to 4 segments).

Q: Why is the data reading unstable?

A: As airflow in the environment is changing and the distribution of organic matter concentration may be uneven. Temtop recommends you try again in low airflow areas.

air quality meter wall- mount device temperature, humidity and PM 2.5 

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return results from our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper. However, you will receive a refund more quickly in many cases. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, please email

We'll notify you via email of your refund once we've received and processed the returned item.

Return Shipping Address: Elitech Technology, Inc. 2528 Qume Drive #2, San Jose, CA 95131, United States

Tel: (+1)4088444070

Shipping: We can ship to virtually any address in the world.

Note that there are restrictions on some products, and some products cannot be shipped to international destinations. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose.

Depending on your chosen shipping provider, shipping date estimates may appear on the shipping quotes page. Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
United States: Shipping within 24 hours.

Free Standard Shipping in the US: 3-5 Business Days for delivery.

Next Day Shipping Service Available in the US: Orders placed before 12:00 pm PST will be shipped on the same day!

Worldwide: Fast Worldwide DHL Shipping.

2-3 business days to prepare the items and 10-14 business days for delivery. The buyer covers tax.

Note: ISO 17025 certified version data loggers are PRE-SALE only.

Lead time: 2 weeks.

The shipping cost will be shown according to the weights and countries at the checkout. If your items were lost in transit, please email

We will send you a replacement or a refund.

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