Mini CO2 Monitor,Upgraded 3-in-1 Portable Carbon Dioxide Detector Temperature Humidity Air Analyzer,Stylish Highly Accurate CO2 Meter Sensor,Air Quality Monitor for Home Indoor Travel - NOCTINGALE, 3002

• 【CO2 monitor portable】3.18*3.18*1.3 inches compact body with large LCD break code screen,with the co2 monitor smiley face display makes you know at a glance whether the room needs ventilation and whether the carbon dioxide concentration is over the limit.Carbon dioxide detector can not only monitor carbon dioxide level,but also test temperature and humidity,perfect for internal use in the home,such as living room,baby room,classroom,office and other closed places,etc. 【Multifunctional CO2 Monitor】This 3 in 1 carbon dioxide monitor can detect real-time CO2 concentration, monitor indoor and outdoor humidity, and temperature. CO2 detection range: 400-5000PPM. Temperature detection range: 0-50℃. Humidity detection range: 0-99%RH. 【Importance to air quality testing】Carbon dioxide (CO2) is harmless at low concentrations, but when it exceeds a certain amount, it can affect human (and other living things) breathing. If it is severe, it can be life-threatening. Therefore, we must use an accurate CO2 monitor to monitor the CO2 level in the air at all times to stay healthy. You can trust and own the NOCTINGALE carbon dioxide monitor developed for carbon dioxide,to monitor the air quality for you! 【Light Pollution Free LCD Display】The CO2 detector is designed with a large backlight free LCD display and liquid crystal display for super easy reading. The backlight-free LCD display avoids light pollution at night, a feature designed for eye protection. Although there is no backlight, the LCD display is designed so that you only need to provide a little light to read the data on the screen! 【Large capacity rechargeable battery】The portable carbon dioxide detector for travel has a built-in large capacity USB rechargeable battery,which takes only 2 hours to charge and up to 30 hours to standby.You can check the air quality from anywhere,or have the device continuously monitor at a specific location,air quality monitor is the guardian of your family's health,If you find any problems or defects during use please contact us promptly and we will solve your problem within 24 hours! 【Charging Instructions】It can be charged by inserting USB-Type-c 5V power supply. In the charging state, the battery icon blinks and stops when it is fully charged. If the display is full but still flashes, it means that the charge is not full. Just a moment, please. The new version fixes previous problems with displaying Fahrenheit and Celsius degrees and inaccurate measurements. You can contact us if you have any problems in the process of using it, and we will provide you with satisfactory after-sales service!, Weight: 0.62 pounds, Manufacturer: NOCTINGALE