DANOPLUS Decibel Meter data Logger is able to record and download real-time PC connection functionality. This means users can effortlessly transfer recorded data to a computer for further analysis or storage. The software is compatible with a wide range of Windows operating systems, including Windows 7, 8, 10, and 11( 64-bit OS support) Decibel Data LoggerThe Decibel Meter itself can record up to 1999 groups of data, and can record unlimited storage while connecting to PC via software, software is compatible with Windows 7, 8, 10, and 11 with 64 bits OS Alarm FunctionThe buzzer and indicator of the sound meter will alarm when the decibel level exceeds the setting threshold limit, you may manually adjust the upper and lower threshold High PreicisionDANOPLUS sound level meter is equipped with large LCD colored screen with analog bar scale, 1.5dB accuracy with 30130dB measuring range and 12 inch microphone ACZ Frequency WeightingThe noise Meter offers A, C, and Z frequency weighting and FASTSLOW options, Fahrenheit and Celsius display, Calibration setting, MAXMINAVGHOLD Function Dual Power SourceDecibel Meter use a 3 x 1.5V AAA battery or USB micro interface 5V both included in the set, with auto power off APO and disable function