Bullet Points: 1Non-contact Design: This digital alcohol tester can test the alcohol concentration in the breath without direct contact. 2 test units of %BAC and g/l are optional, and the accuracy is the same as that of a profeional alcohol tester. 2LCD Display: The high-precision alcohol detector adopts an LED display for easy reading of data even at night. If there is an indicator light, the test results can be seen at a glance. 3Alcohol Test Scope: The latest semiconductor alcohol breath sensor. The test range of our alcohol tester is 0.00~0.95mg/1BrAC (breath alcohol concentration), and the test accuracy is 0.05mg/1BrAC. 4Portable Breathalyzer: Powered by 2 AAA alkaline batteries (not included). The Alcohol Tester is small and light enough to be carried in a bag. A portable alcohol tester is worth having! 5Driving Neceities: Those who drink alcohol, please use our alcohol detector. Drinking and driving can cause harm to you, others, or your family. The perfect gift for Father's Day, friends, colleagues, boyfriends! Description: This alcohol detector can measure the alcohol concentration by simply exhaling, which is healthier and safer than direct contact. Instructions for Use: 1. Pre the switch once, the LCD display of the tester will light up, and at the same time, it will make a "beep" sound. 2. The state warm-up number will jump from 10 to 0, and then the state blow 10 will jump to 0 to complete the warm-up proce. 3. At the beginning of 6 seconds, put your mouth close to the breath test sensor and exhale into the sensor for 3-5 seconds. 4. The display screen can read the test results. 5. When the test results reach the following ranges, the words "Caution" and "Warning" will be displayed 0.02% BAC(or 0.2g/l) to 0.05% BAC(or 0.5g/l) 0.05% BAC(or 0.5g/l) to 0.08% BAC(or 0.8g/l) 6. When the test result reaches the following range, the words "Danger" and "Dangerous" will be displayed. over & EQUAL 0.05% BAC (or 0.5g/l) over & EQUAL 0.08% BAC (or 0.8g/l) Specification: Name: Digital Breath Alcohol Tester Display mode: LCD display Range: 0.00-1.9%BAC&0.0-1.9g/l or 0.00-0.95mg/l BRAC Accuracy: 0.01%BAC(0.1g/l) Battery: 1.5V AAA X 2 (not included) Dimensions: about 95*36*18mm/3.7*1.4*0.7in Weight: about 25 grams (without battery) color: White Package List: Alcohol Breathalyzer * 1 Lanyard * 1 Notes: Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance. Due to manual measurement, there might be a tolerance in the product size.