Acoustic calibrator 94dB(A) class 1

Acoustic calibrator 94dB(A) class 1
CIR/CR:515

The CR:510 series are are high performance acoustic calibrators designed for the calibration of sound level meters
CR:515 calibrator is deliverd with a manual, calibration certificate and a battery

Specifications CR:515 :
IEC 60942:2003 class 1
94dB +/- 0.4 dB
frequency : 1 kHz +/- 1%
Microphone size : 1/2"
Battery 1 x 9V