Sound Level Meter, Includes Carrying Case, Data Logger, Sound Level Meter, USB Cable, Windshield Ball, Digital Display Screen Type LCD with Backlight, Frequency Weighting A, C, Maximum Frequency Measurement 8 kHz, Maximum Sound Level Measurement 130 dB, Minimum Frequency Measurement 20 Hz, Minimum Sound Level Measurement 30 dB, Number of Records Stored 64,000, Sound Level Measurement Accuracy +/-1.4 dB, Sound Level Measurement Resolution 0.1 dB, Interface USB, Features Bar Graph Display