Description The Cammenga Model 3H USGI Military Tritium Lensatic Compass battle tested through rigorous shock, water, sand proof. Seven Tritium Micro Lights allow for navigation in low-light conditions, without the need for a flashlight or any other light source. Tritium Micro Lights remain luminous for over twelve years, maintenance-free. Equipped with a magnifying lens, sight wire, and dial graduations in both degrees and mils to ensure accurate readings. The Copper Induction Damping System slow the rotation of the magnet without the use of liquids. Built to last with an aluminum frame and waterproof housing. How long will the tritium last? Tritium has a “Half-life” of almost twelve and a half years. Experience proves that the strength of tritium, between 10 and 12 years old, begins to decline rapidly. We generally tell people to expect “A good ten years” out of our tritium micro lights. Of course, the compass may be used for longer periods of time, but the night time luminous feature will fade rapidly after 10-12 years. Tritium Expiration Dates: MFD: 2018 – EXP. Date: 2030 MFD: 2019 – EXP. Date: 2031 MFD: 2020 – EXP. Date: 2032 Comes With: 1 -Cammenga 3h Compass Olive Drab Northern Hemisphere NSN: 6605-01-196-6971 1- Pouch Olive Drab (U.S. Printed on Front) 1- Lanyard Olive Drab 1 – Instruction Manuel Features: Luminosity: Tritium Jewel Bearing: Sapphire Rotating Bezel: Bi-Directional Climate Capacity: -50 F to 150 F Frame Materials: Cast Aluminum Waterproof: Yes Expected Luminous Life: 10 – 12 Years Accuracy: /- 20 mils Dial Readings: Degrees & mils Casting: Aluminum Damping Process: Induction
