The tester is a highly accurate and reliable device with a digital LCD display, providing precise results in seconds. This professional meter features a portable design with a high-precision semiconductor sensor, ensuring accurate readings and alerting when elevated levels are detected. Designed for personal and professional use, this tester is ideal for individuals who want to ensure their own safety or the safety of others. Whether at weddings, parties, banquets, or other social events, this compact and practical tester can be easily carried in a handbag or pocket, allowing for convenient use. Includes interchangeable mouthpieces that are reusable and easy to clean, promoting hygiene for multiple users. Stay responsible and test with ease. Measuring ranges: 0-0.199% BAC / 0-0.1990‰ BAC / 0-0.995 mg/L (Note: Product appearance and printed text may vary slightly by batch, but this does not affect functionality.) Color: As shown Material: ABS Package Contents: 1 x Breathalyzer 5 x Mouthpieces Only the above package content is included; other items are not part of the sale. Note: Lighting reflections and differences in display screens may cause slight variations between the image and the actual product color. Measurement error allowance: +/- 1-3 cm.