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

Thank you for looking.
This is a SwitchBot Carbon Dioxide Monitor (Thermometer/Hygrometer).
Purchased new in January and used indoors.
Operation is normal. I am selling it because I did not have many opportunities to check the CO2 concentration.
Please understand that this is a used item and has been stored at home.
It will be initialized before shipping.

The item will be shipped with the 4 items shown in the image.

◼︎Product Description/Condition

[Know When to Ventilate Instantly] CO2 concentration, temperature, humidity, comfort index, and weather forecast* are displayed at a glance, along with the date and time. The display shows air quality and temperature/humidity & comfort levels, making your room's air environment visible. The comfort level numerical range can be freely set via the app. *A hub product is required for the weather forecast function.

CO2 concentration, temperature, humidity, weather, clock, etc. are displayed on the large screen.
It is very convenient as it supports smartphone linkage and smart homes like Alexa.

SwitchBot CO2 Sensor Carbon Dioxide Monitor Thermometer Hygrometer Alarm - SwitchBot Digital Large Screen High Precision CO2 Measurement Device Comfort Index Weather Forecast Clock Desktop Calendar Smartphone Linkage Alert Notification Graph Recording Smart Home Compatible with Alexa Google Home Siri