Feature 1High Accuracy Measurement: Utilizing an advanced semiconductor alcohol sensor, the breath alcohol tester offers a measuring accuracy of 0.05mg/L, enabling precise detection of alcohol concentration to ensure safe driving. 2Infrared Auto Induction: The infrared auto induction feature of this breath alcohol tester detector allows for contactless testing, ensuring safe and convenient use without the need to hold the device during testing. 3Remote Data Viewing: After real time data upload, users can easily view all test records by entering the device ID on their mobile phone or computer, providing convenient access to all test data. 4APP Video Recording: The personal alcohol tester detector supports video recording through the app during testing, with real time watermarking to effectively prevent tampering or substitution by others. 5LCD Display: The standup and contactless alcohol tester is equipped with a large, high definition LCD screen for easy reading, displaying accurate results within 3 seconds. Item Type: Alcohol Tester Screen: Large Color Screen Measurement Accuracy: 0.05mg/L Display Accuracy: 0.05mg/L Measurement Range: 0.00-0.50mg/L Storage Temperature Range: 0-40C Operating Temperature Range: 5-35C Battery: 2 x AAA Battery, 1.5V (Not Included) Package List 1 x Breath Alcohol Tester 1 x User Manual