Specifications
Model number |
Beam pattern |
SPL |
Survival depth |
669 |
+/-90° |
191dB |
3000m |
666 |
+/-60° |
196dB |
3000m |
663 |
+/-30° |
199dB |
3000m |
659 |
+/-90° |
191dB |
3000m |
656 |
+/-60° |
196dB |
3000m |
653 |
+/-30° |
199dB |
3000m |