Question 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.