| Comments |
-
Use to calibrate the " Sound Level meter " precisely.
-
1000 Hz frequency .
-
94 dB Sound Pressure Level
-
Suitable for 0.5 & 1 inch microphone. Total harmonic distortion : 2 %.
-
According IEC942, Class 2 Standard
-
Power by 006P DC 9V battery, 2 PCs.
-
Durable bench type housing case.
- Built-in over input protection.
|