Decibel Meter Sound Level Data Logger, Portable SPL Meter Noise Monitor with Data Logging & Graph Printing, A/C Weighted, 30~130dB, Fast/Slow, MAX, Data Hold, 3-Color Alarm for Noisy Neighbor Factory

描述

Decibel Meter Sound Level Data Logger, Portable SPL Meter Noise Monitor with Data Logging & Graph Printing, A/C Weighted, 30~130dB, Fast/Slow, MAX, Data Hold, 3-Color Alarm for Noisy Neighbor Factory