LCD Digital Alcohol Tester Breathalyzer With 5pcs Mouthpieces Specification: Material: Plastic Colour: Black Display: 3 digits LCD display Pocket Size: 1036527mm (LWH) Sensor Type: NM Hot-wire alcohol sensor Battery Expectancy Time: 200Times Detection Range: 0.00 1.00mg/L (0.00 0.20%BAC; 0.00 2.00g/L; 0.00 2.00BAC) Working Voltage: DC 4.5V Feature: Advanced NM Hot-wire alcohol sensor Quick response SMD assembling, stable performance Smart MCU control Direct testing process LCD indication Digital LCD display with light blue backup Portable and fashion design Audio warning beyond pre-set limit Sensor fault self-checkin Battery saved design, low voltage indication How to Use: To ensure the accuracy of the test result, before testing, please wait for at least 15 to 20 minutes after drinking. If you instantly use after drinking, the result will be false To ensure the accuracy of the test result, please wait at least 3 minutes to begin the next test after the last test To prevent other liquids flow into the air-blowing tube, please do not use chemical or corrosive solution/liquid to clean this product This product cannot be used normally in the environment with high concentration gas Do not use in the enclosed space with paints, pesticides, alcohol and other corrosive gas or dirty air Please do not try to open or repair this product your own After a long time, use please use a clean cloth to clean the tester Note: If a tester is not used for a few days then the buyer will need to press the reset button, as the sensor requires some time to heat and reset Package Contains: 1 x AT6000 Alcohol Tester 5pcs x Mouthpieces