Product name: Smartlife/ Tuya Intelligent air quality monitor texture of material: Fireproof ABS Intended use: Detection and digital real-time monitoring: carbon dioxide, carbon monoxide, atmospheric pressure, temperature and humidity Detection gas: CO2, CO, air pressure, humidity and temperature Specifications: APP: Smartlife/ Tuya Connection: Bluetooth Sensor type: NDIR Co sensor and stable electrochemical CO sensor Size: 43.8mm (L) * 90mm (W) * 110mm (H) Measuring range accuracy of measuring object Carbon dioxide 400-5000PPM 50ppm or 5% of reading Carbon monoxide 0-1000ppm 5% or 10PPM Atmospheric pressure 300-1100hPa Measuring range: - relative accuracy950-1050hPa@25 : 0.12hPa Precision: - Absolute precision(950-1050hPa@0- C1140): 1hPa Temperature measurement range: - 20~60 Accuracy: 2 Humidity measurement range: 5%~95% RH Accuracy: 5% RH CO sensor: stable electrochemical CO sensor Co2 sensor: NDIR Co2 sensor Co2 sensor resolution: 1PPM Resolution of CO sensor: 0.5 PPM Operating temperature: 0 C - 50 C Operating humidity: 0-95% (non condensing) Sound level 85dB (3M) Repeatability:2% Reply time: