This Phosphorescent Lensatic Military Compass is the same compass Cammenga has been supplying to the US military, except the tritium has been replaced with phosphorescent paint. It will glow for 1-2 hours after brief exposure to light. It is built to the demanding specification MIL-PRF-10436N. Other features of this rugged, waterproof compass include: sapphire jewel bearing, bi-directional rotating bezel, and climate capacity of -50 to +150 degrees F. The olive drab frame is made of cast aluminum this compasses uses induction damping process, so there is no liquid or gel to achieve the dial readings are in degrees and mils. It includes a lanyard and an olive drab LC-1 pouch with a belt clip.