Feature:1. Real Time Monitoring: Stay informed about the air quality in your surroundings with this air quality monitor, which has 1.5s sampling time, precisely monitor real time changes.2. Accurate CO2 Detection: Utilizing infrared (NDIR) technology, this air quality detector accurately detects CO2 levels in the air, with a wide range of 400 to 5000PPM.3. Comprehensive Particle Measurement: Our monitor could also detect PM1.0, PM2.5, and PM10 particles in the air, providing a complete picture of air pollution.4. Temperature and Humidity Monitoring: With temperature and humidity sensor, this air quality detector could help you maintain optimal indoor conditions.5. Portable and Rechargeable: Compact in size and equipped with a rechargeable battery, this air quality tester can be easily moved and used anywhere.Specification:Item Type: Air Quality MonitorMaterial: ABSAtmospheric Pressure: 86Kpa to 106KpaCO2 Detection Method: Infrared (NDIR)PM Detection Method: ScatteringSampling Time: 1.5 SecondsSize: Approx. 145x78x97.2mm/5.7x3.1x3.8inDetection Temperature: -10 to 50Relative Humidity: 20% to 85%Storage Temperature: -10 to 60CO2 Concentration Unit: PPMPM Concentration Unit: ug/mBattery: Rechargeable Lithium Battery 3000mAh x 1 (Included)Power Supply: 5V DC Power Supply Via Micro USB PortCO2 Technical Specifications:Measurement Range: 400-5000PCO2 Sensor: Infrared (NDIR)Resolution: 1 PPMPM2.5, PM10, PM1.0 Specifications:Measurement Range: 0 to 999ug/mMeasurement Principle: ScatteringResolution: 1ug/mTemperature and Humidity Technical Specifications:Measurement Range: -10 to 50Measurement Accuracy: 1Humidity Range: 20% to 85% RHMeasurement Accuracy: 4% RH.Package List:1 x Air Quality Monitor1 x USB Cable1 x User Manual