TK422PLUS Digital HCHO / CO2 / TVOC Meter with Humidity & Temperature Measurement IAQ Tester with Professional NDIR Sensor Ideal for Air Quality Monitoring in the Home, Offices, School, Hotels and Others
In stock
TK422PLUS
Features:
Multiple parameter measurements (HCHO, TVOC, CO2, Temperature, and Humidity)
Audible HCHO alarm
Large LCD screen
Battery strength indicator
Switchable temperature unit
Power saving mode ...
Features:
- Multiple parameter measurements (HCHO, TVOC, CO2, Temperature, and Humidity)
- Audible HCHO alarm
- Large LCD screen
- Battery strength indicator
- Switchable temperature unit
- Power saving mode function
- Rear air vent design
- Color indicator for CO2, HCHO and TVOC measurement
- Formaldehyde (HCHO)
- Green: concentration <0.080mg/m³ within standard limit
- Yellow: <0.080 ≤ formaldehyde concentration <0.300mg/m³ slightly exceed the standard
- Red: concentration ≥0.300mg/m³ exceed the standard limit
- Total Volatile Organic Compounds (TVOC)
- Green: TVOC concentration ≤0.45mg/m³ within standard limit
- Red: TVOC concentration >0.45mg/m³ exceed the standard limit
- Carbon Dioxide (CO2)
- Green: CO2 levels between 400~1000PPM within the standard limit
- Yellow: CO2 levels between 1001~1999PPM slightly exceed the standard
- Red: CO2 levels between 2000~5000PPM exceed the standard limit
- Green: CO2 levels between 400~1000PPM within the standard limit
- Formaldehyde (HCHO)
Specifications:
| Formaldehyde (HCHO) | Total Volatile Organic Compounds (TVOC) | Carbon Dioxide (CO2) | Temperature | Humidity | |
| Range | 0.000~5.000 mg/m³ | 0.000~9.99mg/m³ | 400~5000ppm | -20 to 40°C / -4°F to 104°F | 20 to 99% |
| Sensor | Advanced Gas Electrochemical Sensor | Advanced Gas Electrochemical Sensor | Infrared NDIR Sensor | - | - |
| Collection Method | Diffusion Collection | Diffusion Collection | Infrared Collection | - | - |
- Battery Capacity: 2500mAh polymer lithium battery
- Charging Method: DC5V Type-C interface
- Input Specification: 5.0V / 1000mA
- Charging Temperature: 10~40°C/14~104 °F
- Item Dimension: 15.6 x 4 x 8.8cm (6.1 x 1.6 x 3.5in)
Set Includes
- 1 x 5-in1 Air Quality Monitor
- 1 x USB Type-C Cable
- English Instruction Manual
Returns Policy
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 is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund in the same payment form used at the time of purchase within four weeks of giving your package to the return shipper. This time period includes the transit time for us to receive your return from the shipper, the time it takes us to process your return once we receive it, and the time it takes for the refund to be credited to your account.
For more information, please refer to our Return, Refund & Warranty Policy or contact us.
Shipping Policy
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 the shipping provider you choose, 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.
For more information, please refer to our Shipping Policy.
Warranty Policy
Most of our items come with 1 year warranty for manufacturer defects. It does not include damage caused by misuse, accidents, abuse, alterations, neglect or other external causes.
The warranty will not extend to consumables (i.e. electrodes, calibration solution, battery, index oil), accessories, cable, compact disk and/or any written document bundled with the item.
For more information, please refer to our Warranty Policy.
