5-in-1 Mini Air Quality Monitor with CO2, TVOC, HCHO, Temperature & Humidity Sensor - Smart Real-Time Indoor/ Detector, Rechargeable Battery/USB Powered, Compact Portable CO2 Meter for Home, Office, Travel, Low-Noise Sensor, Easy-to-Read Display, Ideal for Allergy & Asthma Sufferers, Energy-Efficient Design, USB-C Charging, 24H/48H/72H Data Logging, Compatible with Smart Apps

If you plan to use this product for an extended period, please connect the cable. The battery can last approximately 4 to 5 hours• 5-in-1 Carbon Dioxide Meter: This device offers multiple functions, allowing it to measure carbon dioxide in the atmosphere, temperature, humidity, and total volatile organic compounds (TVOCs). • Digital Humidity and Temperature Analyzer: The digital analysis feature of this equipment provides precise readings for these factors, helping you maintain a comfortable environment• Carbon Dioxide, Total Volatile Organic Compounds, and Formaldehyde Detector: This device can measure carbon dioxide, total volatile organic compounds, and formaldehyde, making it ideal for assessing the air quality in your living or working space.