Goodhd Multi-Function Mini CO2 Detector Air Quality Monitor Temperature Humidity tester

Features: *Large Screen Display Design:1.9” Ultra-High Definition Color IPS Display Screen easy to read. *High Accuracy Non Dispersive Infrared(NDIR) Technology: It can real-time monitoring CO2 temperature and humidity which is more accurate more reliable and more durable than traditional electrochemical sensors to detect carbon dioxide concentration. *Three Button Design:The CO2 monitor with three buttons design The M key can adjust the brightness it has 3 different brightness choose the low brightness mode can help you save the battery the Power button can Switching degree Fahrenheit and Celsius with short press long press is to turn on or off the device. The S key can turn on or off the Alarm with short press long press to calibration data. *Compact and convenient:The CO2 Monitor is lightweight and compact combining beauty and technology easy to carry with an anti-loss hanging rope allowing you to keep informed of environmental changes around you. *Long Battery life: It built-in a large capacity and can work about 16~20 hours USB fast chaging. Specifications: CO2 concentration measurement range:400-5000ppm Warm up time: 35S Working temperature: -10~ 50 Degree Material:ABS Display:LCD HD display Battery capacity:700mAh Charging method:USB C Cable Color:Black White Power Source Type:Battery Powered Package Includes: 1PCS MINI CO2 Detector 1PCS USB Cable 1PCS User Manual