YRHWS Breathalyzer & Alcohol Tester with 12 Mouthpieces, Professional Breathalysers Portable Alcohol Breath Tester with LCD Display Digital Fast, High Accuracy

【Professional Alcohol Tester】This alcohol tester has a high-precision semiconductor alcohol sensor. It can quickly provide a result to judge whether you can drive or not. Test winner with 99.1%, range of 0.00%~1.9% BAC / 0.0~1.9g/L. 【Easy To Use】Just insert 2 AAA batteries, turn on your breathalyzer. Wait 10 seconds for it to warm up, then blow for 3-5 seconds, the result will be shown on the LCD screen later. (that the batteries are NOT included) 【Auto-Alarm Function】Test result is above 0.05% BAC or 0.50 ‰ BAC or 0.25mg/L or 50mg/100ml, Breathalyzers beeps continuously and to remind drivers not to drive. 【You will get】1 * Breathalyzer, 12 * Mouthpieces, the mouthpieces can be cleaned and recycled. Super compact design, breathalyzer fits in your pocket and is easy to hold and carry wherever you go. Ideal for drivers. 【Tips】After drinking, wait 20 minutes to perform the test, the result will be more accurate. The readings of this product are for reference only and cannot replace professional medical or legal advice. Please always follow local drinking and driving regulations.