DIGITAL ACOUSTIC CALIBRATOR SOUND GENERATOR SOUND LEVEL TESTER METER SP6
The device has 2sound pressure levels of 94dB and 114dB with afrequency of 1000 Hz ± 0.1%. Sound pressure level 51 x 51 x 137mm. IEC 942 Class 1. A,B,C,D, linear. 1000 Hz +/-0.01%.