1、High Accuracy Breath Test: This digital high accuracy alcohol tester utilizes a semiconductor gas sensor to provide precise and reliable results. 2、Fast And Portable: With a quick breath time of 10 seconds, this alcohol detector is compact and easy to carry, making it convenient for on the go testing. 3、Rechargeable Battery: This alcohol tester comes with a built in lithium battery that can be easily charged, ensuring continuous usage without the need for frequent battery replacements. 4、Semiconductor Gas Sensor Technology: The advanced semiconductor gas sensor technology used in tester ensures accurate measurement of breath alcohol content, giving you peace of mind. 5、Rapid Preheating And Testing: With a short preheating time of only 15 seconds, electric digital alcohol tester allows for quick and accurate testing. 1 x Alcohol Tester1 x Instruction1 x USB Charging Cable Item Type: Alcohol TesterMaterial: ABSUsage: Measure alcohol consumptionBattery: Lithium Battery, 200mAh (built in)Testing Method: Semiconductor gas sensorBreath Alcohol Content Measurement Range: 0.00- 0.19%Breath Time: 10 seconds (usually 3-5 seconds is sufficient)Preheating Time: 15 seconds​Weight: Approx. 52.00g / 1.83oz