3
measurement. It is applied to the sounds 
measurement at factory; school; office; traffic 
access and household, etc. 
z  This unit confirms to the IEC61672-1 
CLASS2 for Sound Level Meters. 
z  MAX & MIN measurements 
z  Over range display 
z  Under range display 
z  A & C Weighting 
z  FAST & SLOW response 
z  Analog AC/DC outputs for connection to 
frequency analyzer or X-Y shaft recorder 
3.  SPECIFICATION 
Standard applied:     IEC61672 -1 CLASS2   
Accuracy:    +
1.4dB 
Frequency range:    31.5HZ ~ 8KHZ 
Dynamic range: 50dB 
Level ranges:    LO:30dB~80dB     
Med:50dB~100dB 
Hi:80dB~130dB 
Auto:30dB~130dB