Description

Suunto M-3 Premium Precision Compass

The Suunto M-3 is a high-quality baseplate compass designed for hiking, trekking, orienteering, expeditions and precise map navigation. Manufactured in Finland, it combines a stable liquid-filled capsule, a high-grade steel needle with jewel bearing and adjustable magnetic declination correction.

The transparent baseplate includes metric and imperial map scales together with an integrated magnifying lens, making it easier to examine map details and plot routes. Luminescent markings on the bezel, orienting indicators and direction-of-travel line support navigation in low-light conditions.

This northern-hemisphere version is balanced for reliable operation in northern magnetic zones. It requires no battery and remains suitable for dependable off-grid navigation in demanding outdoor environments.

Key Features

• Premium baseplate compass for outdoor navigation
• Balanced for the northern hemisphere
• High-grade steel magnetic needle
• Jewel bearing for smooth needle movement
• Liquid-filled capsule for stable readings
• Adjustable magnetic declination correction
• Bearing lock with orienting indicator
• Transparent baseplate for map work
• Integrated magnifying lens
• Metric and imperial map scales
• Luminescent bezel and navigation markings
• Compass accuracy: approximately 2.5°
• Compass resolution: 2°
• Detachable snap-lock lanyard with wrist lock
• No battery required
• Insensitive to water pressure
• Operating temperature from -30°C to +60°C
• Suunto limited lifetime warranty
• Made in Finland

Reliable Baseplate Compass for Adventurers

The Suunto M-3 is designed for users who require a dependable traditional compass for remote travel and map-based navigation. It does not depend on satellite reception, mobile networks, software or battery power.

Its transparent baseplate can be placed directly over a map, allowing the user to align routes, measure approximate distances and transfer bearings between the compass and the terrain.

High-Grade Steel Needle with Jewel Bearing

The magnetic needle is made from high-grade steel and supported by a jewel bearing. This construction helps the needle rotate smoothly and settle accurately when the compass is held level.

The compass is balanced for use in the northern hemisphere. A compass balanced for a different magnetic zone may tilt excessively or respond less reliably.

Liquid-Filled Capsule

The compass capsule is filled with liquid to dampen needle movement. This helps the needle settle more quickly and remain stable during navigation.

Temperature changes may affect the appearance of the liquid, but the compass is specified for operation and storage between approximately -30°C and +60°C.

Adjustable Declination Correction

Magnetic declination is the angular difference between magnetic north and geographic true north. The M-3 allows the declination correction to be adjusted, reducing the need to calculate the difference manually for each bearing.

The correct declination value depends on location and changes gradually over time. Check an up-to-date map or reliable geographic source before setting it.

Bearing Lock and Orienting Indicator

The rotating bezel allows the desired bearing to be selected and retained. The orienting indicator then helps the user align the compass needle correctly and maintain the chosen direction of travel.

This is useful for transferring a route from a map to the terrain and for following a bearing when landmarks are limited or visibility is reduced.

Luminescent Markings

Luminescent markings are applied to the bezel, orienting indicators and direction-of-travel line. After exposure to light, these markings remain visible for a limited period in darkness or low-light conditions.

The compass does not contain an electronic backlight and requires no battery.

Transparent Baseplate with Magnifying Lens

The transparent baseplate allows map symbols, contour lines and grid details to remain visible beneath the compass. An integrated magnifying lens assists with reading small map details.

The baseplate also includes both metric and imperial scales for common map ratios.

Metric Map Scales

• Centimetres
• 1:20,000
• 1:25,000
• 1:50,000

Imperial Map Scales

• Inches
• 1:24,000
• 1:50,000

Always confirm that the scale printed on the compass matches the scale of the map being used.

Detachable Lanyard

The included lanyard has a snap-lock attachment and wrist lock. It can be detached quickly when the compass needs to lie flat on a map.

The lanyard helps keep the compass accessible during travel and reduces the risk of dropping or losing it.

Recommended Use

• Hiking and trekking
• Orienteering
• Mountain navigation
• Bushcraft and camping
• Expeditions and remote travel
• Search and rescue training
• Military-style field navigation
• Outdoor education
• Emergency preparedness
• Backup navigation alongside electronic devices

Package Includes

• Suunto M-3 NH Compass
• Detachable lanyard
• Quick-release attachment
• Quick guide

Technical Specifications

Basic Compass Use

1. Hold the compass level and away from metal objects, magnets and electronic equipment.
2. Allow the magnetic needle to settle.
3. Rotate the bezel until the required bearing is aligned with the direction-of-travel line.
4. Turn your body and the compass together until the magnetic needle aligns with the orienting indicator.
5. Follow the direction indicated by the direction-of-travel arrow.
6. Select a visible landmark along the bearing and walk towards it.
7. Repeat the alignment procedure whenever necessary.

Using the Compass with a Map

1. Place the map on a flat surface and identify the current position and destination.
2. Place one edge of the compass baseplate between the two points.
3. Rotate the bezel until the orienting lines are parallel with the map’s north-south grid lines.
4. Ensure the orienting arrow points towards north on the map.
5. Apply or confirm the correct magnetic declination adjustment.
6. Lift the compass from the map and hold it level.
7. Turn until the magnetic needle aligns with the orienting indicator.
8. Travel in the direction shown by the direction-of-travel arrow.

Accuracy and Navigation Advice

• Keep the compass level while taking a bearing.
• Keep it away from knives, firearms, vehicles, steel structures, magnets, phones, radios and electrical cables.
• Check declination before travelling in a new region.
• Use terrain features and map information to confirm your position regularly.
• Practise navigation skills in a safe area before relying on them in remote terrain.
• Use redundant navigation methods during safety-critical travel.

Care and Maintenance

• Rinse with clean fresh water after exposure to salt water, mud or dirt.
• Wipe with a soft damp cloth.
• Do not use solvents, strong chemicals or abrasive cleaners.
• Protect the transparent baseplate and magnifying lens from scratches.
• Do not deliberately bend the baseplate.
• Store away from strong magnets and magnetic equipment.
• Avoid prolonged exposure to temperatures outside the specified range.
• Inspect the capsule, bezel and lanyard before important trips.

Safety Information

• A compass is a navigation aid and does not automatically determine the user’s position.
• Incorrect declination settings, map interpretation or bearing technique may lead to navigation errors.
• Magnetic interference can produce inaccurate readings.
• Do not rely on a single compass as the only safety measure during remote travel.
• Carry a suitable map, route plan and emergency equipment.
• Inform another person of the planned route and expected return time.
• Weather, visibility and terrain may make a correct bearing difficult or unsafe to follow directly.
• Children should receive appropriate instruction and supervision.
• The magnifying lens may concentrate sunlight; do not leave it focused on skin or combustible material.

Sustainable Finnish Manufacturing

Suunto compasses are designed and manufactured in Finland. According to the manufacturer, the compass factory in Vantaa uses 100% renewable energy in its operations.

The M-3 is included in Suunto’s field-compass category-level environmental assessment, which reports an average lifetime carbon footprint of approximately 1.3 kg CO₂e for selected compass models. This value represents a category average rather than an individual product measurement.

Why Choose the Suunto M-3?

The Suunto M-3 combines accurate mechanical navigation with a practical map-reading baseplate. Its adjustable declination, jewel-bearing needle, liquid-filled capsule and clearly marked bezel make it suitable for serious outdoor use.

Unlike electronic navigation devices, it requires no charging, mobile signal or satellite connection. Its low weight, Finnish manufacture and limited lifetime warranty make it a reliable primary or backup navigation instrument.

FAQ

Glossary

• Baseplate Compass: Compass mounted on a transparent rectangular plate for map navigation.
• Magnetic Declination: Angular difference between magnetic north and geographic true north.
• Jewel Bearing: Low-friction bearing that supports smooth movement of the magnetic needle.
• Liquid-Filled Capsule: Sealed compass housing containing liquid that dampens needle movement.
• Bearing: Direction expressed as an angle in degrees from north.
• Orienting Indicator: Marking used to align the magnetic needle with the compass housing.
• Direction-of-Travel Arrow: Arrow showing the direction in which the user should move.
• Compass Resolution: Smallest marked angular interval on the compass scale.
• Northern-Hemisphere Balance: Needle balancing optimised for northern magnetic zones.

Manufacturer & GPSR Information

Manufacturer:
Suunto
Tammiston kauppatie 7 A
FI-01510 Vantaa
Finland

Website and customer support:
www.suunto.com/Support/customer-support/