Charging power: 5V 1A Battery: 1 * lithium battery, 1100mAh (included) Type: BR-8B Display method: LCD color screen display BR-8B: PM2.5, PM10, PM1.0, HCHO, TVOC, Greater than 0.3μm/0.1l number of particles, Greater than 0.5μm/0.1l number of particles, Greater than 1.0μm/0.1l number of particles, Greater than 2.5μm/0.1l number of particles, Greater than 5.0μm/0.1l number of particles, Greater than 10μm/0.1l number of particles HCHO measuring range: 0-9.999mg/m⊃3; Particles measuring range: 0-9999μg/m⊃3; CO2 measuring range: 0-5000ppm Temperature measuring range: 0~50Celsius Humidity measuring range: 20~90%RH Working environment: 0~45Celsius, no condensation Item size: 137 x 75 x 40mm / 5.4 x 3.0 x 1.6in Item weight: 178g / 6.3ounce Colour:blue Material:plastic Package Contents: 1 x Air Quality Analyzer Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.