| Item |
Description |
| USB interface |
Yes |
| Micro SD card |
Up to 32G |
| Bargraph display |
Yes |
| Display |
3 1/2 digit backlit LCD display, maximum reading of 2000 |
| Display refresh rate |
1 time/ per second |
| Applicable specifications |
IEC 61672-1 : 2002 Class1, ANSI S1.4 Type 1, CNS NO.7129 Type 1, JJG-188-2002 Class1 |
| Microphone |
1/2" pre-polarized condenser microphone build in preamplifier: -26 +/- 2dB (50mV/Pa), Fequency range: 10 Hz~20 kHz, heat noise : <28 dN(A) |
| Measurement items |
SPL, Leq, SEL,Max, Min |
| Measurement range |
30dB ~ 130dB (A), 35dB ~ 130dB (C), 40dB ~ 130dB (Z) |
| Dynamic Range |
100 dB |
| Integrate Time Setup |
randomly,10s, 1m, 5m, 10m, 30m, 1h, 2h, 4h, 8h, 16h, 24h or set in a given range |
| Max. peak C sound level |
measurement 70~133 dB |
| Time weighting |
Fast, Slow, Impulse, Peak |
| Frequency weighting |
A/C/Z |
| Frequency Range |
10Hz~20KHz |
| DC output |
2Vdc/130dB |
| AC output |
2Vrms/130dB |
| Battery Life |
30 hours |
| Battery |
LR6 1.5V*4 Alkaline batteries |