1、INFRARED OPTICS PRINCIPLE: CO2 detector uses professional infrared optics, sampling frequency up to 1S per time, multiple anti interference, air convection technology, and greenhouse compensation calibration. 2、5 IN 1 DESIGN: Air quality monitor features multiple air indications including CO2, HCHO, TVOC, temperature, humidity, real time refresh and readout for more accurate tracking of air quality. 3、ACCURATE DETECTION: Carbon dioxide detector uses a powerful high performance analysis chip and more advanced gas identification algorithms for more accurate detection through various certifications. 4、LARGE LED DIGITAL SCREEN: Indoor pollution alarm detector is designed with intelligent large LED digital screen, soft backlighting for eye protection, clearer display, and can read data in real time, very convenient. 5、APPLICABLE SCENARIOS: Air quality monitor is easy to carry, widely used in agriculture, greenhouse vegetables, production warehouses, materials processing, home interior, automotive, office, etc. 1 x Air Quality Monitor1 x Charging Cable1 x Instruction Manual Item Type: Air Quality MonitorModel: For ZN 2COTB BColor: WhiteMaterial: ABSScope Of Application: HouseholdMeasuring Range: 400-6000ppm ±50ppm ±5%PpmBattery: 18650 1500mAh (Not Included)Bluetooth: Support