* Standards IEC61252, ANSI S1.25 for noise dose and sound
exposure
meters, IEC 61672 Class 2 / ANSI S1.4 Type S for sound level
meters.
* A or C frequency weighting.
* Ranges : 30 to 130 dB auto range.
* Display : LCD, 0.01-9999%.
* Criterion Level : 80, 84, 85 or 90dB.
* Exchange rate : 3, 4, 5 or 6 dB.
* Threshold level : 70 to 90 ( 1 dB steps ).
* Response rate : Fast or Slow.
* Measurement duration :
0/1/5/10/15/30 minutes 1/2/4/8/10/12/24 hours.
* Microphone :1/2 inch electret condenser.
* RS232/USB computer Interface.
* Real time data logger
* Size: 132 x 80 x 32 mm.
* Microphone with the clip and the carrying case are included.