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 blood alcohol content (BAC) estimate. The LCD graphic display indicates the BAC level, showing "caution" when the result is within 0.02% - 0.05%, and "danger" when the result is 0.05% BAC or higher. Results below 0.02% BAC are considered low. Features: - Digital display breath alcohol tester - Digital alcohol tester with ble alert - Color: Black - Material: ABS - BAC range: 0.00–0.19% BAC and 0.0–1.9 g/L - Quick response and recovery - Auto power-off function - Red LED backlight - Accuracy: ±0.01% BAC and ±0.1 g/L - Test time: 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: Only the items listed are included. Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance is +/- 1-3 cm.