اسم العلامة التجارية
Landtek
Accuracy
In accordance with IEC61672 standard, class 2
Frequency weighting
A, C, and Lin(Linear)
Time Weighting
Fast (F), Slow (S)
Testing Range 1
30dB~90dB (dynamic scale display 10~100)
Testing Range 2
50dB~110dB (dynamic scale display 30~120)
Testing Range 3
70dB~130dB (dynamic scale display 50~140)
