1Digital display of Liquor concentration results with beep. 2Quick response and resume, very practical. 3The alarm point can be selected, according to your needs. 4Automatic shutdown and power saving function, energy saving. 5Simple operation, with display screen to show.Condition: 100% brand newItem type:LiquorDetectorMaterial: ABSColor: As picture shownSize: Approx. 11.2x7x2cm/4.4x2.8x0.8inWeight: Approx. 65gSensor: semiconductor liquor sensorWarm-up time: within 10 secondsResponse time: within 5 secondsWorking environment: 5~40Test range: 0.00%-0.19% BAC & 0.0-1.9 g/LBattery: 2 x AAA battery (not included)1 xLiquorDetector4 x ReplacementMouthpiece1 x Instruction1. Do the test after drinking for at least 20 minutes, because it takes about 20 minutes for liquor to be absorbed from the digestive system into the blood. Test immediately after drinking, the result can only reflect the concentration of liquor in the mouth at that time, not the concentration of liquor contained in the blood.2. In order to make the test result accurate, please wait 20 minutes after drinking alcohol before performing the test. The test time is preferably more than 3 minutes from the last test.3. Smoking and eating are strictly prohibited within 20 minutes before the test.4. Do not directly wipe the product with chemicals or corrosive solvents, and avoid liquids from flowing into the blowing tube.5. If the test is carried out under low battery, there will be a certain deviation between the test value and the real value.6. It is strictly prohibited to place and use it in a close environment with corrosive gas or air pollution such as paint, pesticide, alcohol.7. Repairing and damaging internal parts without authorization will cause product failure.