Questions about Oromed X12 PRO Alcohol Tester

THE SET COMPOSITION 3-digit LCD display Measuring range: 0.00 ~ 4.00 ‰ Display resolution: 0.01‰ Accuracy: +/- 0.05‰ for 1.0‰ at 25°C. Advanced Fuel Cell Sensor Powered by 2 x AAA 1.5V alkaline batteries. Recommended calibration intervals Every 6 months / 500 measurements, whichever comes first. Operating conditions 5 ~ 40 °C, humidity < 95 % relative humidity Dimensions 45 x 111.5 x 19.8 mm Weight 58.8 g (without batteries) According to the manufacturer's website COMPOSITION OF THE SET : 2pcs AAA alkaline batteries. 5 pieces of mouthpiece. Warranty card User's manual We do not have any other information.