1. Smart HighSensitivity Chip: The high precision alcohol tester features an intelligent highsensitivity 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 noncontact 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. HighResolution Display: The handheld digital breathalyzer boasts a highresolution TFT color display, offering clear and comfortable readings even in lowlight conditions, thanks to its night vision capability.5. LongLasting Battery: Equipped with a largecapacity 500mAh lithium battery, the professional alcohol tester can operate continuously for over 15 hours on a full charge. It features a standard TypeC charging port and utilizes ultrabright LED light sources for low energy consumption and high brightness.Charging input: 5V/1ACurrent: 150mAOperating temperature range: 5+45Storage temperature range: 20+50Indicator light: blue/redDetection method: Semiconductor gas sensorMeasurement range of alcohol concentration in exhalation: 0200mg/100mLMeasurement object: Alcohol concentration in exhalationWorking voltage: 3.7VCharging interface: TypeCCharging time: 30 minutesUse time: 500 timesSensor replacement: Colour:As ShownMaterial:plasticPackage Contents:2 * Handheld Digital BreathalyzerOnly 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 +/ 13cm.