VSON Handheld Air Quality Monitor

Handheld air quality monitor capable of measuring PM2.5, temperature, and humidity.
Purchased on Amazon in 2021 for 9999 yen.
Used only once. Operation confirmed.
Includes original box and instruction manual.

- Product Name: VSON Air Quality Monitor
- Product Size: 7.1 cm
- Measurement Functions: PM2.5, PM10, HCHO, TVOC
- Display: Color Display
- Usage: Handheld

Quoted from the original Amazon listing:

VSON Air Quality Monitor White Air Quality Meter Test Formaldehyde HCHO TVOC PM2.5 Pollution Indoor Air Quality Measurement (White)
* Brand: VSON
* Color: White
* Item Weight: 200 grams
* Product Dimensions (Length x Width x Height): 15.1 x 4.4 x 7.1 cm
* UPC: 739210348694
* Manufacturer: VSON
* Multifunctional Air Quality Monitor: This multifunctional air quality tester can be used not only to detect formaldehyde in the air but also to detect TVOC, PM2.5, and even PM10. It has the function of air quality assessment, and the air level results are displayed on the LCD screen.
* Three Independent Sensors: It features three independent sensors and an innovative light-sensing refraction algorithm that greatly improves detection accuracy and speed.
* Easy to Operate: Simple one-click operation for easy use. This air quality monitor comes with a USB charging cable and a built-in lithium battery, which have a long lifespan and can be recycled.
* Lightweight and Durable with Rear Bracket: The high-quality lightweight shell with a clear LCD display provides a pleasant experience. Thanks to the rear support bracket, the monitor can stand, and the data is visually displayed.
* Live in a Healthy Environment: Use it to track the air quality around you. Additionally, the air quality sensor can be used for air quality testing at home, in your car, or in the office.