FRSISI CO2 Detector Portable,3-in-1 Carbon Dioxide Monitor Meter Air Quality Monitor CO2 Detector Mini with Temperature and Humidity Detector for Outdoor,Home,Office,Travel

【Real-Time CO2 Monitoring】The 3-IN-1 CO2 monitor uses NDIR technology to detect indoor and outdoor CO2 concentration in real-time, with a detection range of 400-5000PPM. It also monitors humidity range (0-99%RH) and temperature range (14℉-122℉/-10℃-50℃).
【Large Full-Color LCD Screen】The mini CO2 meter features a large full-color LCD screen that’s easy to read and has an eye-protective function. It can send out smart alarms based on different CO2 concentrations,keeping you informed of environmental changes around you.
【Portable and Lightweight】This portable carbon dioxide detector is lightweight and compact, making it easy to carry with you wherever you go. It comes with an anti-loss hanging rope, so you can keep it close at hand.
【Upgraded Button Functions】The CO2 monitor portable has three buttons that allow you to adjust the brightness, switch between Fahrenheit and Celsius, and turn the alarm on or off. It also has a calibration function for accurate data readings.
【Long Battery Life】The CO2 detector has a high-capacity rechargeable battery 1100mAh that takes only 2 hours to fully charge and provides up to 20 hours of standby mode. This means you can use it for extended periods both indoors and outdoors to monitor air quality.