When switched on, the breathalyser logs on for 10 seconds(message - Warm UP), then notifies you with a beep that it is ready to perform the test. Then blow air through the mouthpiece(message - Blow) as shown in the user manual, for a few seconds(until you hear the beep that the measurement is complete).

TECHNICAL SPECIFICATIONS:

✅ Product code: 01254

✅ Indication in per mille and per cent

✅ Chain and eyelet included

✅ 5 mouthpieces FREE of charge

✅ Automatic switch-off function

✅ Backlit LCD display

✅ Colour: black

✅ Product has CE and RoHS certification

TECHNICAL DATA:

✅ Measurement range 0 to 1.9 g/l

✅ Accuracy 0.01%

✅ Dimensions 11cm X 7 cm X 2.5 cm

✅ Power supply: 2 x AAA/LR03 batteries (not included)

KIT INCLUDES:

☑️ Factory new breathalyser mouthpiece

☑️ 4 exchangeable mouthpieces

☑️ Original packaging