About this item: High-precision sensor & Multi-functionThe CURCONSA carbon dioxide detector adopts the SenseAir S8 CO2 sensor imported from Sweden, which responds quickly and accurately. It can display the ambient temperature, humidity and clock at the same time, and set the sound alarm. The CO2 concentration measurement range can reach 0-9999PPM. 999 Sets of Data Storage & Historical TrendThe air quality tester can store 999 sets of measurement data, and the historical trend function can view the trend graph of historical data with one key. (The PDF version can be connected to a computer via USB to export trend graphs and data tables of historical data, so that the data can be viewed and analyzed more intuitively.) Rechargeable Battery & 3.2-inch TFT Color ScreenEquipped with 2200mAh large-capacity rechargeable lithium battery, the battery life is more than 9 hours on one charge. The large 3.2 inch TFT color screen makes the reading clearer. Scope of ApplicationCO2 concentration is an important indicator of air quality. It determines the air quality level of your living or working environment. Carbon dioxide tester is suitable for detecting CO2 concentration in industrial, agricultural and residential environments. Common areas include houses, meeting rooms, clarooms, hospitals, airports, factories, greenhouses,livestock farm and other places where ventilation control and environmental quality monitoring are required. What You GetCURCONSA CO2 Monitor*1 , Bracket *1, USB Cable *1,Storage Box*1,English User manual*1.The total weight of the product is le than 850g(30oz), light and compact, easy to carry.If the product you received was damaged or defective during transportation, please do not worry and contact us at any time, we promise to help you solve the problem as soon as poible CURCONSA CO2 Detector is an accurate, convenient and affordable CO2 concentration measurement tool, it can monitor the carbon dioxide concentration in your room in real time. At the same time, it is also an accurate thermometer and hygrometer and clock, which can monitor the temperature and humidity of the room in real time and display the time. Its carbon dioxide concentration measurement range is as high as 0~9999ppm, which is suitable for various scenarios. Large-capacity rechargeable lithium battery can avoid the trouble of frequent charging. In addition, it can store up to 999 sets of historical data. You can use one key to view historical trend graphs and historical data tables. The PDF version can be connected to a computer via a USB cable to download data icons and data tables to facilitate the storage of data records and data analysis. Features: Monitor Carbon Dioxide Concentration Measure Environmental Temperature and Humidity Time Display Audible Alarm Prompt / Conversion CO2 Concentration Indicator Data Record Specifications: CO2 Meter Measuring range: 0~9999ppm Accuracy: 40ppmrdg10%ppm Resolution: 1ppm Operating temperature range: -10~60(-14~140) Working current: 180mA Battery capacity: 2200mAh Charging time: 3 hours Automatic shutdown: can be set Data storage: 999 groups Screen: 3.2-inch TFT color screen Temperature Measurement: Temperature measurement range: -20~60(-4~140) Temperature measurement accuracy: 1(2) Temperature resolution: 0.01/ Humidity Measurement: Humidity measurement range: 0~100%RH Humidity measurement accuracy: 2%RH (20~80%RH) Humidity resolution: 0.01%RH