 | simple to use |
| fixed measurement range 70-140 dBA |
| control with slide on/off keypad for added security |
| display of multiple parameters on custom LCD |
| data logging memory |
| variable criterion from 70-90 dBA |
| variable thresholds from 70-90 dBA |
| variable exchange rates from Q=3 to Q=6 |
| 3 dB exchange rate for ISO style measurements |
| 4 dB exchange rate for US DOD measurements |
| 5 dB exchange rate for US OSHA measurements |
| Slow time response |
| powered by 4 x AAA batteries |
| 1 measurement at a time |
| released in about 1988 |
