SwitchBot CO2 Sensor - Carbon Dioxide Monitor, Thermometer, and Hygrometer

Concerned about carbon dioxide levels, I purchased this from the official website in March and used it for about a month to measure.
I used test batteries, so the included cord is unused.
The initial protective film has peeled off in some areas, but since I used it without removing it, I believe the screen is still in good condition.
The box, instruction manual, test batteries, and charging cord are all included.
Initialized (by long-pressing the top button).

Will be shipped via Yu-Packet Post.

*Shipping method can be changed to Compact for an additional ￥300 if you comment before purchasing.