Multi in 1 Air Quality Sensor High Accuracy Particle Concentration Gas Detector for Carbon Dioxide PM2.5 Item Type: Sensor Module Product Model: M702 U Output mode: UART protocol CO2 measurement range: 400ppm-5000ppm CO2 measurement accuracy: ±25% CO2 measurement resolution: 1ppm CH2O measurement range: 0ug/m³-1000ug/m³ CH2O measurement accuracy: ±25% CH2O measurement resolution: 1ug/m³ TVOC measurement range: 0ug/m³-2000ug/m³ TVOC measurement accuracy: ±25% TVOC measurement resolution: 1ug/m³ PM2.5 measurement range: 0ug/m³-999ug/m³ PM2.5 measurement accuracy: ±10% PM2.5 measurement resolution: 1ug/m³ PM10 measurement range: 0ug/m³-1000ug/m³ PM10 measurement accuracy: ±10% PM10 measurement resolution: 1ug/m³ Temperature measurement range: -40℃ - 100℃ Temperature measurement accuracy: ±0.3℃ Temperature measurement resolution: 0.01℃ Humidity measurement range 0- Humidity measurement accuracy: ±3%RH Humidity measurement resolution: 0.04% Physical interface: XH2.54 female socket Working current: ≤80mA Working temperature: 0℃-50℃ Working humidity: ≤95%RH Preheating time: 2 minutes (only CO2, CH2O and TVOC need to be preheated, other parameters can be displayed by power on) Service life: 5 years (in air) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.