| Sound Level Meters > Class 2 Sound Level Meter |
| Sound Level Meter NL-21 |
IEC 60651:1979 Type 2 IEC 60804:2000 Type 2 IEC 61672-1:2002 Class 2 ( IEC 61672-1 was enforced in year 2003.IEC 60651and IEC 60804,the two IEC standards lost effect.) |
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Measurement function: Lp, Leq, LE, Lmax, Lmin, LN, Lpeak, Lcpeak, LAI, LAIeq, Lceq and LATm5 Data store: Manual 100 data sets, Auto store 1 and 2, memory card slot up to 200 hours worth of LA values sampled every 100 ms. Battery life: 32h with alkaline batteries Filter program card, either NX-21SA or NX-21VA, optional
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