เครื่องวัดระดับความดังเสียง Sound Level Meter - Datalogger with USB interface รุ่น DT-173 บันทึกข้อมูล ต่อเข้า Computer ได้โดยตรงผ่าน USB port
This is a brand new CEM DT-173 CE certified digital sound / noise level datalogger. This meter has a built-in USB port which connects to a Windows PC for uploading the recorded data. This is an ideal instrument for noise monitoring in factory, school, business and traffic areas. This meter conforms to the IEC61672-1 Class 2 standards. This device operates on a 3.6V Lithium battery. This device is very accurate (+/- 1.4 dB) and durable, an ideal companion for your field projects.
FEATURES::
Conforms to the IEC61672-1 Class 2 for sound level measurement
NORM and PEAK mode
Over range indication
A & C frequency weighting
Fast (125ms) and slow (1s) time weighting
Calibration via software
Manual and automatic start modes
SPECIFICATIONS::
Accuracy | |
+/- 1.4 dB | |
Frequency range | |
31.5 Hz - 8KHz | |
Dynamic range | |
50dB | |
Measuring ranges | |
Auto: 30 -130 dB | |
Time weighting | |
Fast: 128 ms
Slow: 1 sec | |
Microphone | |
1/2 inch electret condener microphone | |
Data memory | |
129,920 samples | |
Battery life | |
about 240 hours | |
LED indicator | |
Green (operating) and Yellow (memory full) LED | |
OS compatibility | |
Windows 2000, XP or Vista | |
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