Find your way in the dark. A fluorescent dial with high contrast markings helps you navigate in low light or by headlamp. Large numerals at every 20-degree mark, 1:25:000 and 1:50:000 scales and centimeter/millimetre rules make it easy to read a map and set bearings.
- 2-degree dial graduations.
- Declination scale for quick adjustments of map bearings to field headings.
- Clear base-plate.