Features: Portable: Design our portable breathalyzer using an ultra sensitive semiconductor sensor system to accurately display alcohol levels in the blood within seconds. Easy reading: The alcohol tester provides you with highly accurate test results, reliably withstanding high values. The red background light makes it easy to read even at night. Alarm function: If the measurement result exceeds 0.5 ‰ BAC, the respirator will warn you through an audible alarm. To save power, the breathalyzer will automatically turn off 5 seconds after the test is completed. In addition, it also has a battery level indicator. One touch operation: The respiratory analyzer is very easy to use. Simply insert two 1.5V AA batteries (batteries not included), turn on your breathalyzer and start the test. You can easily change the measurement units and set custom BAC thresholds for testing. Product color: Black/White Size (Length x Width x Height): Approximately 4.5x2 x 12cm One box: 60 units Carton: 57 * 38.5 * 33.5 cm G. W./N.W.: 12/11 kg