This emergency compass is worn around the soldiers' neck and due to its small size, can be swallowed if necessary. It's basically a 3 gram survival kit.  The dial is luminous (glows brightly).

• Type of compass: General direction finder
• Compass capsule / needle
• Sighting System: No
• Magnifying lens: No
• Declination adjustment: No
• Clinometer: No
• Illumination: 6 hours
• Luminous compound: Everglow^TM
• Hole for nylon line attachment
• Available graduations: Cardinal points N, E, S, W
• Resolution degrees / mils » 45 =
• Settling time from 90 degree angle to complete rest » 6 sec
• Accuracy » 5 degrees (89 mils)
• Waterproof » IP68 - (more than 100 m)
• Altitude use » 2000m@-10 C
• Impact resistance » 30g in XYZ directions and free fall from 1,5 m height into gravel
• Temperature operating range » -10 to + 50 C
• Material » Acrylic
• Size (mm) » 18mm diameter
• Weight g » 8