1. Smart High-Sensitivity Chip: The high precision alcohol tester features an intelligent high-sensitivity chip for continuous testing, eliminating false readings and ensuring accurate, quick detection without the need for airflow. 2. Voice Assistance: The portable alcohol digital detector comes with intelligent voice prompts, providing clear instructions throughout the testing process and allowing users to check the last 50 test records easily. 3. Alcohol Detection Alert: When alcohol is detected, the non-contact alcohol blowing detector flash a red light, exposing any alcohol presence. It can also function as a traffic with red and blue lights cycling for prominent safety warnings. 4. High-Resolution Display: The handheld digital breathalyzer boasts a high-resolution TFT color display, offering clear and comfortable readings even in low-light conditions, thanks to its night vision capability. 5. Long-Lasting Battery: Equipped with a large-capacity 500mAh lithium battery, the professional alcohol tester can operate continuously for over 15 hours on a full charge. It features a standard Type-C charging port and utilizes ultra-bright LED light sources for low energy consumption and high brightness. Charging input: 5V/1A Current: 150mA Operating temperature range: -5℃-+45℃ Storage temperature range: -20℃-+50℃ Indicator light: blue/red Detection method: Semiconductor gas sensor Measurement range of alcohol concentration in exhalation: 0-200mg/100mL Measurement object: Alcohol concentration in exhalation Working voltage: 3.7V Charging interface: Type-C Charging time: 30 minutes Use time: 500 times Sensor replacement: Colour:As Shown Material:plastic Package Contents: 2 * Handheld Digital Breathalyzer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.