4231 Brüel & Kjaer

$ 40.50
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Specifications : 4231 Brüel & Kjaer Acoustic Calibrator for sound level meter :  NF EN/CEI 60942 (2003), Class LS and Class 1, Calibrators acoustic, Nominal Sound Pressure Level : 94.0 dB ±0.2 dB (main SPL) or 114.0 dB ±0.2 dB ref 20 μPa at 1 kHz ±0.1%