Silva Expedition S Compass with Luminous Markings

The Silva Expedition S Compass with Luminous Markings is a high-precision mirror sighting compass designed for experienced navigators, mountaineers, and professionals who demand accurate bearings, durable construction, and reliable night visibility in open terrain.

• Mirror sighting design: Enables simultaneous viewing of the compass dial and background for long-distance bearings, improving accuracy when terrain demands precise alignment.
• Night-ready luminous markings: Read bearings in low-light conditions without losing sight of the dial or reference points.
• Magnifying lens: Aids precise reading of small graduations on the dial and scales, enhancing map work in the field.
• Comprehensive map scales: Includes mm and inches measurements with GPS scales 1:25,000 and 1:50,000, plus the option to map-measure 1:40,000 for broader planning.
• Built-in magnetic declination adjuster: Allows permanent local adjustment to keep bearings accurate as you travel across different regions.
• Detachable scale lanyard: A flexible ruler-style accessory with 1:25 and 1:50 scales that can be placed directly on your map for quick distance estimation.
• Easy-handling housing with silicone feet: Durable, grippy housing plus silicone rubber feet stabilize the compass on maps and during use in rugged environments.
• Clinometer and slope awareness: Measures slope angle for terrain evaluation and includes 45-degree angle assistance on the mirror-sighting function to aid in safe route planning.
• Slope card for avalanche risk assessment: Quickly gauge terrain risk—critical in mountainous regions where slopes steeper than 30 degrees increase avalanche potential.
• Versatile use cases: Ideal for expedition planning, backcountry navigation, search-and-rescue operations, and professional fieldwork where accurate distance, bearing, and slope data matter.

The Expedition S excels in open terrain where long-distance direction finding matters most. Its mirror sighting capability, combined with precise map measurements and a robust declination adjuster, helps you determine bearings with confidence while planning routes, estimating travel time, and assessing terrain hazards. The integrated slope card and clinometer give you actionable insights at a glance, supporting safer decisions in avalanche-prone or uneven terrain. With luminous markings for low-light navigation, this compass keeps you on course from dawn patrols to dusk treks, ensuring you can map, measure, and navigate with clarity and reliability.