Profile: Brüel & Kjær is a manufacturer and supplier of sound & vibration solutions. We are accredited with ISO 9001:2000 certification. We supply analyzer systems, sound level meters, transducers, conditioning amplifiers and telecom & audio. we offer products like pulse analyzer platform, sound level meters, transducers & conditioning, environmental noise management, telecom audio solutions, calibration systems, laser vibrometry, model excitors, noise dose meters, building acoustics & room acoustics. Noise dose meter type 4444, logging noise dose meter type 4445 and intrinsically safe logging noise dose meter type 4445 E are small, lightweight and robust instruments for the assessment of personal noise exposure. The meters perform all of the essential functions for making dose measurements. In addition, types 4445 and 4445 E include statistical analysis of measurement data and the ability to log user-selected values.