Portable CO2 Meter, Smart 3-In-1 Tool for Carbon Dioxide Detection, Thermometer for Monitoring Indoo

Carbon Dioxide Detector: Accurate and real-time monitoring of CO2 concentration, ambient humidity and temperature with date display, and the data is updated in real time every 4 seconds. semiconductor sensor: to measure CO2, temperature and humidity, large full-color screen, LED digital display, smart backlight, smooth eye protection, intuitive reading, clearer screen, 24-hour real-time monitoring.Long Battery Life: Use 3 AA batteries (you need to bring your own) or use the TYPE-C interface USB data cable for power, and the battery life can be up to half a month.Automatic alarm system: When the CO2 concentration exceeds 1000ppm, an alarm will be issued to notify you to ventilate the indoor environment in time. Design: Small in size, easy to carry and can be used by connecting the USB cable directly. It can be placed anywhere: schools, offices, bars and restaurants, homes, cars, etc.Colour:blackMaterial:ABSSize:137 x 80 x 35mmPackage Contents:1 * air quality monitor1 * usb cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.