Sound meter integration with USB provides LEQ and SEL measurements with an integrated data logger and PC interface. Features include a 4-digit multifunction LCD with an analog bar graph, precise linearity over a wide range (100 dB), display modes: SPL, SPL MIN/MAX, SEL, and LEQ, programmable integration time, A and C frequency weighting, and pulse/fast/slow response settings. The data logging function captures up to 32,000 records, real-time calendar/time, and analog and alarm output functions can be used to connect to frequency analyzers, recorders, external data loggers, and noise level alarms. It has a built-in USB interface with included Windows data logging software and a tripod mount. The product meets IEC 61672-1, 60651/60804 Type 2 and ANSI S1.4 Type 2 specifications.