Sound Level Meter 声音计级器
 Sound Level Meter 声音计级器  F702 Swiftlet House Electronics Accessories燕屋器材 Electrical Hardware 燕屋电器五金 Johor Bahru (JB), Malaysia, Desa Jaya Supplier, Suppliers, Supply, Supplies | Nest Tech System Sdn Bhd
声音计级器  Sound Level Meter 

声音计级器是一种用于测量声音的仪器。
 
Able to measure actual sound level (dB)
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