1. Advanced Sensor Technology: This electrochemical alcohol tester features a high-precision, high-reliability electrochemical sensor. With a dual-core processor and dual-filter algorithm, it uses a scientifically designed airway and internal purification chamber to filter out impurities, delivering alcohol-only results in seconds. 2. Compact Design: The foldable mouthpiece design of this blowing drunk driving alcohol tester minimizes space usage and allows for easy storage, making it a convenient tool to keep on hand. 3. Versatile Testing Modes: Equipped with both precise and rapid screening modes, this non-touching blowing breathalyzer offers non-contact, hygienic testing for multiple users, making it a versatile tool for scenarios. 4. Portable and : Designed to be and compact, this non-contacting electronic breathalyzer is easy to carry, ensuring you can take it anywhere you need. 5. Sturdy Construction: Made from high-quality ABS material, this professional breath alcohol tester features a drop- and dustproof design with a sturdy casing. It includes a new graphene battery for long-lasting power and supports Type-C fast charging. Sensor:Fuel Cell Alcohol Sensor (Electrochemical) Measurement Object:Alcohol Concentration in Exhaled Breath Blowing Time:5 Seconds Response Time:1-15 Seconds Recovery Time:Test Results 80mg/100mL, Recovery Time Less than 20 Seconds Measuring Range:0-400mg/100mL Detection Accuracy:6mg/100ml Key Operation:Single Key Operation Indicator Light:Green/Yellow/Red Voice Broadcast (Language):Chinese/English/Russian/Japanese Sensor Replacement: Display:0.96-inch IPS Color Display Battery Capacity:300mAh Working Voltage:3.7V Rated Power:0.6W Charging Method:Type-C DC5V/1A Charging time:60 minutes Using temperature:-5-+45 Storage temperature range:-20-+50 Size:70x45x16.5mm/2.73x1.76x0.64in Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Plastic Package Contents: 1 * Electrochemical Alcohol Tester 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.