Gracey & Associates UK Hire

Bruel & Kjaer 4226 Sound Level Calibrators

B&K 4226

Acoustic Calibrator - class 1 - multi-function

£ 25 a day *

Laboratory working standard - delivered with UKAS Certificate.

Frequency levels from 31.5 Hz to 16 kHz in octave bands over the range of 94 dB to 114 dB in 10 dB steps, for microphones and meters.

Fast, Slow, Crest and A weighting tests for meters.

Noise Dose values may also be tested.

Includes free-field and random correction networks for a range of Bruel and Kjaer 1/2" microphones.

A 1/4" adaptor is also included.

Battery operated

Manufacturer's Specifications

An ideal calibration system for in house testing of both your microphones and meters.


* Our standard hire charges are based on a 4-day minimum period - details and other options.

Gracey & Associates   01933 624212

BSI accreditation for instrument hire and calibration

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