Compact and Portable: This portable breathalyzer tester is easy to carry and use on the go, providing accurate and reliable detection anytime, anywhere. Zero Sensitivity with AntiInterference: A strong antiinterference function ensures precise and stable performance for more reliable results in varied environments. LED Digital Display: The clear, easytoread LED display makes it simple to see your level and stay safe on the road. LongLasting Battery Life: Equipped with a 300mA battery, this portable tester delivers stable performance and extended usage time. Use scenarios Before driving or operating heavy machinery to confirm sobriety and reduce risk. After social events or gatherings to ensure you are below the threshold before getting behind the wheel or using a vehicle. In workplace safety programs for operators of safetycritical equipment to verify compliance with alcohol policies during shifts.