Features:   1. Multi-function: it can detect temperature and humidity, CO2 you can view the data you need.   2. Portability: This product is small in size and light in weight, which is very convenient to carry around.   3. Function: with intelligent alarm system, ga-s recognition algorithm, multiple anti-interference, air convection technology and greenhouse compensation calibration.   4. Accuracy: The high-performance chip can accurately capture the weak current generated during the electrochemical reaction and accurately calculate the measurement result.   5. Stability: The carbon dioxide detection can be refreshed once per second, and the measurement can be performed quickly and relatively stable measurement values can be obtained.   Description:   This product is used in agricultural planting, greenhouse vegetables, production warehouses, radium material processing, etc.   Specifications:   Material: ABS   Colour: Black   CO2 detection range: 400-5000 PPM   CO2 detection sensitivity: 1PPM   Temperature measurement range:   -10-70 Temperature elimination accuracy: ±1   Humidity measurement range: 0%-99%RH   Humidity measurement accuracy: ±2%RH   Charging modes: DC5V 500mA micro USB interface   Battery: 1 * Lithium battery 2000mAh   Product size: 96*33*33mm   Package Included:   1 pc * Air quality detector   1 pc * USB cable   1 pc * User manual   Notes:   1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.   2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.