Feature: 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. Specification: Item Type: Alcohol Tester Material: ABS Usage: Measure alcohol consumptionBattery: Lithium Battery, 200mAh (built in) Testing Method: Semiconductor gas sensor Breath 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. Package List: 1 x Alcohol Tester 1 x Instruction 1 x USB Charging Cable