Description
|
Model |
NM14 |
NM24 |
NM34 |
| Measuring Range |
30～130dBA, 35～130dBC |
||
| Accuracy |
±1.5dB |
||
| Frequency |
31.5HZ-8.5KHZ |
||
| Dynamic Range |
50dB |
||
| AC/DC Signal output |
√ |
||
| Automatic power-off |
√ |
||
| Low-power display |
√ |
||
| Overload alarm |
√ |
||
| Digital bit and resolution |
5Digits & 0.1dB |
||
| Selection of Dynamic feature |
Fast/Slow |
||
| Microphone |
1/2 inch Condenser Microphone |
||
| Frequency weighting characteristics |
A & C |
||
| Selectable measuring level |
√ |
||
| Maximum value lock |
√ |
||
| RS232 interface |
– – |
√ |
|
| Perpetual calendar |
– – |
√ |
|
| Sampling frequency |
2 times/sec |
||
