Product name: Smartlife/ Tuya Intelligent air quality monitortexture of material: Fireproof ABSIntended use: Detection and digital real-time monitoring: carbon dioxide, carbon monoxide, atmospheric pressure, temperature and humidityDetection gas: CO2, CO, air pressure, humidity and temperatureSpecifications:APP: Smartlife/ TuyaConnection: BluetoothSensor type: NDIR Co sensor and stable electrochemical CO sensorSize: 43.8mm (L) * 90mm (W) * 110mm (H)Measuring range accuracy of measuring objectCarbon dioxide 400-5000PPM 50ppm or 5% of readingCarbon monoxide 0-1000ppm 5% or 10PPMAtmospheric pressure 300-1100hPaMeasuring range: - relative accuracy950-1050hPa@25 : 0.12hPaPrecision: - Absolute precision(950-1050hPa@0- C1140): 1hPaTemperature measurement range: - 20~60 Accuracy: 2 Humidity measurement range: 5%~95% RH Accuracy: 5% RHCO sensor: stable electrochemical CO sensorCo2 sensor: NDIR Co2 sensorCo2 sensor resolution: 1PPMResolution of CO sensor: 0.5 PPMOperating temperature: 0 C - 50 COperating humidity: 0-95% (non condensing)Sound level 85dB (3M)Repeatability:2%Reply time: