Acoustic calibrator CAL300
Acoustic calibrator for class 1 sound level meters
The acoustic calibrator is the key accessory to calibrate measurement system.
The acoustic source is defined in pressure level and in transmitting reference,
it corresponds to the current class 1 standards : NF EN 60942 : 2003 and CEI 60942 : 2003
It delivers two acoustic pressure levels according to your selection : 94dB or 114dB with a 1,000 Hz frequency