I have two 2230 in the lab for over 2 years
An excellent choice for any acoustic measurement.
In a very high reliability with a microphone 4155 he authorized levels over 150 dB. Must be accompanied by a 94dB calibrator or pistonphone 4220.
Used with a filter it allows measurements at 1 / 3 octave. on the other hand, there dvor batteries. Prvoir a spare set.
Before I had and I still have 2209, 2204, 2205, 2207 and a Bruel & Kjaer 2610 that I keep giving collector but also specific on the measures still. I have other Dcibel meters type GR and CEL and CESVI but are less efficient at any point.
The average price in good condition is closer to the 1500 and Euro 3500 in spcialiss establishment.
Expensive, but effective from 10 Hz up to 25kHz. This is the Dcibel meters of Audio REFERENCES
Value and indmodable sre.