A breathalyzer is a device for estimating blood alcohol content (BAC) from a breath sample. It uses semiconductor alcohol sensing technology to quickly analyze a breath sample and provide a BAC estimate. The LCD graphic display indicates the BAC level with visual feedback: “Caution” for results between 0.02%–0.05% BAC, and “Danger” for results at or above 0.05% BAC. Features: Digital display breath alcohol tester ble alert Color: Black Material: ABS Measurement range: 0.00–0.19% BAC and 0.0–1.9 g/L Quick response and resume Auto power off Red LED backlight Accuracy: ±0.01% BAC and ±0.1 g/L Warm-up time: Less than 10 seconds Response time: Less than 5 seconds Operating temperature: 10–40°C Operating humidity: 40–90% RH Package includes: 1 × Breath alcohol tester Note: Color appearance may vary slightly due to lighting and screen differences. Measurement tolerance applies.