مكان المنشأ
Guangdong, China
اسم العلامة التجارية
Landtek
measurement parameters
Lp,Leq,Ln,Lmax
optional accessory
USB, RS-232 Data Cable With Software and BT
Time Weighting
Fast (125 ms) / Slow (1 Second)
Microphone
1/2 Inch Electret Condenser Type
Built in Calibration Signal
94 dB at 1k Hz (sinusoidal)
Alarm Value Set
30 ~ 130 dB