A breathalyzer is a device for estimating blood alcohol content (BAC) from a breath sample. It uses advanced semiconductor alcohol sensing technology to quickly analyze a breath sample and provide a BAC estimate. The LCD graphic display indicates the level of intoxication, showing "caution" when the result is between 0.02% and 0.05% BAC, and "danger" when the result is 0.05% BAC or higher. Results below 0.02% BAC are considered safe. Features: - Digital display breath alcohol tester - Audible alert - Color: Black - Material: ABS - Measurement range: 0.00–0.19% BAC and 0.0–1.9 g/L - Quick response and recovery time - Auto power-off function - Red LED backlight - Accuracy: ±0.01% BAC and ±0.1 g/L - Results in less than 10 seconds - Response time: Less than 5 seconds - Operating temperature: 10–40°C - Operating humidity: 40%–90% Package Contents: 1 x Breath Alcohol Tester Note: The actual product color may vary slightly due to lighting and screen display differences. Measurement error tolerance is +/- 1–3 cm.