eZK15-QSJ-2 Noise Meter is a pocket instrument used to measure noise, its main specifications accord with the request of GB3185-83 <The noise meter measurement method of the electric and sound performance > and IEC651-79<The noise meter>, and used to measure the noise in mechanical and electrical product and traffic.

The QSJ-2 noise Meter adopt electric microphone, high capability operational amplifier and LSI, have some advantage of steady capability and easy operation. Four digital display, resolving power is 0.1dB in all range.

The range of the QSJ-2 Noise Meter is inside of 50dB to 130dB(A), dynamic range is 80 dB. The QSJ-2 Noise Meter have function of reading instantaneously and holding maximum.