Features Advanced Monitoring Capabilities: Measure voltage, current, power, and battery capacity in real time, ensuring you stay informed about your battery's performance and health Comprehensive Circuit Protection: Safeguard your system with customizable settings for overvoltage, undervoltage, and overcurrent protection, ensuring safe and reliable operation High-Quality Materials: Enjoy enhanced usability with silicone shortcut keys, a durable acrylic panel for screen protection, and brass shunt for superior conductivity Integrated Alarm System: Stay alerted with a built-in buzzer that activates when limits are exceeded, providing immediate notifications to prevent potential damage User-Friendly 2.4-Inch Display: Benefit from a clear color screen that presents all relevant data, making it easy to navigate settings and monitor battery performance efficiently Features: 1、BREATH ALCOHOL TESTER: The alcohol detector adopts non testing and can be shared with friends, safe and . Automatically shuts down 10 seconds after the test results are displayed, saving power. 2、SOUND LIGHT ALARM: The test result shows 0.02% to 0.05BAC (0.2 to 0.5g/l), the screen will display Caution. If the result is greater than or equal to 0.05% BAC (0.5g/l), the screen will display Danger and emit sound and light alarms. 3、HIGH ACCURACY: This alcohol tester uses high semiconductor alcohol sensor, which can quickly respond and recover, providing you with reliable and stable results. 4、WIDE TESTING RANGE: 0.0 to 1.9g/l, 0.00% to 0.19% BAC, accuracy 0.01% BAC, test results can be switched between g/l and mg/ml. 5、EASY TO USE: Simple one key . Preheat for 10 seconds to obtain more accurate results. Blow for 3 to 5 seconds, and your BAC results will be displayed on a bright, easy to read LCD screen for 3 to 10 seconds. Specification: Item Type: Breath Alcohol Tester Material: ABS Display Method: LCD Screen Display Atmospheric Prure: 86-106kPa Alcohol Sensor Type: Semiconductor Sensor Detection Range: 0.0-1.9g/l, 0.00%-0.19% BAC Accuracy: 0.01% BAC Response Time: 3-10s Preheating Time: 10s Battery: 1 x 500mAh Lithium Battery (Built in), Including USB Charging Cable Service Life: 3-5 years, Use Times: 5000 Times Package List: 1 x Breath Alcohol Tester 1 x USB Cable 1 x User Manual Note: betweendiv>1. It takes about 20 minutes for alcohol to be absorbed from the digestive system and enter the bloodstream. It is recommended to measure after drinking for 20 minutes. If it is measured immediately after drinking, the measurement result is not blood alcohol content.between/div>betweendiv>2. To make the measurement more accurate, the time between two measurements must be greater than 3 minute Package List 1 x Breath Alcohol Tester 1 x USB Cable 1 x User Manual