Package Dimensions:13.1 x 9.2 x 3 cm; 44 Grams Item Weight:44 g Features: --LCD display gives you clearer view and digital alcohol automatically gives you audible alert. --A digital alcohol Breath Analyzer, high sensitivity. --Automatic shutdown, Rapid Response and Recovery. --Easy to carry, tiny volume with keychain design. --Environment and healthful. Blowing design with five mouthpieces for multiple users. --A simple method to analyze the concentration of Alcohol in the blood in any time and any place. Specifications: Battery: 2 * AAA Alkaline Batteries (Not Included) Sensor: Advanced semiconductor oxide alcohol sensor Accuracy: 0.01% BAC (0.1g / L) Range: 0.00-0.19%BAC and 0.0-1.9g / l (Or 0.00-0.95mg / l (BRAC) Package Weight: 51g/1.8oz Package List: 1 * Alcohol Breath Tester Analyzer (Batteries Not Included) 5 * Mouthpieces 1 * User Manual [LCD Display]: LCD display gives you clearer view, the degree of danger (over 0.05% bac), unsafe (about 0.02% bac) or safe (below 0.02% bac); "Warning" is displayed when the result is in the range of 0.02% - 0.05%, and "Danger" is displayed when the result is equal to or greater than 0.05% [Accurate Test]: The portable breath alcohol tester adopted the advanced semiconductor oxide alcohol sensor, so it can reliably handles high BAC levels and is accurate to 0.01% BAC, providing you with stable, reliable measurement results [Intelligent Alarm]: If the alcohol content is higher than 0.05% BAC, a continuous beep will sound from the personal breathalyzer alcohol breath tester that remind the driver not to drive; The breath tester for alcohol is automatically turned off to save power when there is no operation [Easy to Operate]: The digital alcohol breath tester is extremely easy to use; Simply insert the two AAA batteries, power on it and begin to test, your BAC results will be displayed 20 seconds later on a bright, easy to read LCD screen [Portable and Healthful]: Tiny volume with keychain design is easy to carry and fit in a pocket or purse or other small space; To ensure a healthy environment, we offer five mouthpieces per user, which can be changed regularly See more product details [LCD Display]: LCD display gives you clearer view, the degree of danger (over 0.05% bac), unsafe (about 0.02% bac) or safe (below 0.02% bac); "Warning" is displayed when the result is in the range of 0.02% - 0.05%, and "Danger" is displayed when the result is equal to or greater than 0.05% [Accurate Test]: The portable breath alcohol tester adopted the advanced semiconductor oxide alcohol sensor, so it can reliably handles high BAC levels and is accurate to 0.01% BAC, providing you with stable, reliable measurement results [Intelligent Alarm]: If the alcohol content is higher than 0.05% BAC, a continuous beep will sound from the personal breathalyzer alcohol breath tester that remind the driver not to drive; The breath tester for alcohol is automatically turned off to save power when there is no operation [Easy to Operate]: The digital alcohol breath tester is extremely easy to use; Simply insert the two AAA batteries, power on it and begin to test, your BAC results will be displayed 20 seconds later on a bright, easy to read LCD screen [Portable and Healthful]: Tiny volume with keychain design is easy to carry and fit in a pocket or purse or other small space; To ensure a healthy environment, we offer five mouthpieces per user, which can be changed regularly