Various modules CO Sensor Range 0-1000ppm Accuracy ±5ppm or ±10% Resolution 5ppm Sensor Type Micro Fuel cell NO2 Sensor Range 0-5ppm Accuracy ± 5% F.S Resolution 0.001ppm Sensor Type Solid polymer Electrochemical Sensing technology TVOC Sensor Range 0-500 Accuracy ≤ ± 15 Resolution 1 Sensor Type MOx PM2.5 Sensor Range 0-1,000 μg/m³ Accuracy 0-100μg (±10μg/m3 ), 100-1000μg (±10%) Resolution 1 μg/m3 Sensor Type Light Scattering NO2 & CO Sensor Range 0-1000ppm(CO), 0-5ppm(NO2) Accuracy ±15ppm or ±10%(CO), ±5% F.S(NO2) Resolution 1ppm(CO), 0.001ppm(NO2) Sensor Type Micro Fuel cell(CO), Solid Polymer Electrochemical (NO2) Ozone Sensor Range 0-5ppm Accuracy ± 5% F.S Resolution 0.001ppm Sensor Type Solid polymer Electrochemical Sensing technology HCHO Sensor Range 0-1ppm Accuracy ± 5% F.S Resolution 0.001ppm Sensor Type Solid Polymer Electrochemical NH3 Sensor Range 1ppb Accuracy ± 5% F.S Resolution 0.01ppm Sensor Type solid polymer electrochemical sensing technology H2 Sensor Range 0-5 % vol. Accuracy ± 5% F.S Resolution 0.01ppm Sensor Type Solid polymer Electrochemical Sensing technology H2S Sensor Range 0-5ppm Accuracy ± 5% F.S Resolution 1ppb Sensor Type Solid polymer Electrochemical Sensing technology SO2 Sensor Range 0-5ppm Accuracy ± 5% F.S Resolution 1ppb Sensor Type Solid polymer Electrochemical Sensing technology Battery Battery Type AA Battery Numbers Three Volume 2700maH