1、Air Quality Detection: Four in one air quality monitor, mainly used for carbon dioxide detectors, hazard assessment, temperature and humidity detection, etc. 2、Intelligent Detector: With intelligent alarm system, gas recognition algorithm, multi anti interference, air convection technology, greenhouse compensation calibration, detection is more intimate. 3、Infrared Optical Detection: Use more professional infrared optical principles to accurately and quickly detect carbon dioxide, and the detection results are more reliable. 4、Large Screen Design: Clear display, easy to read data. It is made of high quality materials, easy to operate and use, and has a long service life for monitor. 5、CO2 Detector: High performance chip is accurate to display the current CO2 data, as well as temperature and humidity data, the color wheel will change according to the CO2 content. Item Type: Carbon Dioxide Detector Model: ZN-AZ-2CO2 Material: ABS Battery: 18650 1500mAh 3.7V (Built-in Battery) Charging Power Supply: DC 5V 500mA Micro USB Purpose: Suitable for carbon dioxide concentration detection in offices, homes, gymnasiums and other usage scenarios Basic Parameters: CO2 Measurement Range: 400-6000 PPM ±50 ±5%PPM CO2 Measurement Accuracy: 1PPM Temperature Measurement Range: -10~50℃ Temperature Measurement Accuracy: ±1℃ Humidity Measurement Range: 0%~99%RH Humidity Measurement Accuracy: ±2%RH 1x Carbon Dioxide Detector 1 x USB Data Cable 1 x Manual