Best Seller | TRIPLETT 3550 SoniChek PRO Type 2 Professional Sound L Sound Level Meter, Includes Carrying Case, Set of AC/DC Output Leads, USB Cable, Digital Display Screen Type LCD with Backlight, Frequency Weighting A, C, Maximum Frequency Measurement 8 kHz, Maximum Sound Level Measurement 130 dB, Minimum Frequency... ... more TRIPLETT 3550 SoniChek PRO Type 2 Professional Sound L Sound Level Meter, Includes Carrying Case, Set of AC/DC Output Leads, USB Cable, Digital Display Screen Type LCD with Backlight, Frequency Weighting A, C, Maximum Frequency Measurement 8 kHz, Maximum Sound Level Measurement 130 dB, Minimum Frequency... | | $52.65 go to store |