| Model |
SM-18 |
|
| Recording function |
No |
Yes |
| PC software |
No |
Yes |
| Storage capacity |
No |
17280 sets of measurements |
| Record interval |
No |
1 second to 10 minutes |
| Measuring range |
30~130dBA; 35~130dBC |
| Resolution |
0.1dB |
| Precision |
±1.5dB (reference tone standard, 94dB@1kHz) |
| Measuring gear |
30~130dB; 30~80dB; 50~100dB; 80~130dB |
| Response frequency |
31.5Hz~8.5kHz |
| Sampling frequency |
2 per second |
| Frequency weighted characteristics |
A and C rights |
| Time weighting characteristics |
FAST (time constant 125 milliseconds) |
| SLOW (time constant 1 second) |
| Analogical depiction |
2dB/Characterization (30~130dB gear) |
| 1dB/Characterization (other gear) |
| AC signal output |
4Vrms/output impedance is about 100Ω per full scale |
| DC signal output |
The output impedance of 10mV/dB, is approximately 85Ω |
| Operating environment |
Temperature: 0~40ºC |
| Humidity: 10~80%RH |
| Storage environment |
Temperature: -10~60ºC |
| Humidity: 10~70%RH |
| Power supply |
2 pcs of 1.5V AA alkaline batteries |
| 2 pcs of 1.2V AA rechargeable batteries |
| 5V USB |
| Protection level |
IP40 |
| Dimension |
221*65*30 mm |
| Material |
ABS |
| Weight |
About 155g (without batteries) |
