Uni-T A37 Carbon Dioxide Monitor Portable Co2 Meter With 1500Mah Rechargeable Battery High Accuracy Co2 Detector For Carbon Dioxide Air Quality Monitor

High accuracy and high stable carbon dioxide monitor for real time detecting CO2 concentration, temperature, humidity, also display current time and date, really multifunctional and practical to get one. Features: 3-inch HD Large LCD Screen Display: simultaneously display CO2 concentration, temperature and humidity, date and time. Audio and Visual Alarm: the CO2 data will upgrade every 3 seconds, once it exceed 1000ppm, it will make sounds and the backlight will turn red. Air Quality is Indicated with Emoticons: according to the CO2 concentration, there are 6 kind of emotion icons to indicate the current air quality. NDIR Infrared Sensor Adopted: professional non-dispersive infrared(NDIR) provide fast and high accuracy measurement results. Rechargeable Battery Power Supply: 1500mAh great capability 3.7V polymer lithium battery, and built-in with power protection chip to ensure . Automatic and Manual Calibration Function: perfect for various working environments and conditions. Wide Applications: can be used in homes, shopping malls, offices, vehicles, stations, laboratory, cleanroom, greenhouse, CO2 storage room, and more. Specifications: Material: ABS CO2 : 400~5000ppm CO2 Resolution: 1ppm CO2 Accuracy: ±(5%rdg+50ppm) (at normal temp.&humidity, 400~2000ppm) Temperature : -10~50℃ Temperature Resolution: ±1℃ Temperature Accuracy: ±1℃ Humidity : 0%~99%RH Humidity Resolution: 1%RH Humidity Accuracy: ±5%RH at 25℃ (10%~99%RH) Working Environment: 0~50℃, 0%~85%RH Storage Environment: -20~60℃, 0%~95%RH Sensor: NDIR CO2 sensor Respond Time: ABC: Automatic baseline calibration Power Supply: 3.7V 1500mAh rechargeable battery or USB power supply Screen Size: 76.3 * 25.4mm / 3.00 * 1.00in Item Size: 130 * 75 * 55mm / 5.12 * 2.95 * 2.17in Item Weight: 195g / 6.88oz Packing List: 1 * CO2 Monitor 1 * USB Cable

3-inch HD Large LCD Screen Display: simultaneously display CO2 concentration, temperature and humidity, date and time.Audio and Visual Alarm: the CO2 data will upgrade every 3 seconds, once it exceed 1000ppm, it will make sounds and the backlight will turn red.Air Quality is Indicated with Emoticons: according to the CO2 concentration, there are 6 kind of emotion icons to indicate the current air quality.NDIR Infrared Sensor Adopted: professional non-dispersive infrar