Cammenga Official US Military Tritium Lensatic Compass Clam Pack. Every one of these Compasses by Cammenga is crafted to handle everything a mission may throw at them which is why they are shockproof waterproof and sandproof. The Cammenga 3H Tritium Compass is equipped to operate in temperatures ranging from -50 F to 150 F and its non-liquid filled needle housing ensures the components aren't compromised by temperature fluctuations. Seven Tritium micro-lights keep this compass illuminated for over 12 years and are a great feature to have especially when operating in low-light environments. Lead the way for your squad next time using this Cammenga Tritium Lensatic Navigation Compass. Specifications for Cammenga Official US Military Tritium Lensatic Compass: Manufacturer: Cammenga Fabric/Material: Aluminum Condition: New Illumination Type: Tritium Closed Length: 3 in Features of Cammenga Official US Military Tritium Lensatic Compass Equipped with 7 Tritium micro-lights providing continuous illumination for over 12 years. Shockproof damage-resistant design. Waterproof to considerable depths. Sandproof for extra durability. Accuracy +/- 40 mils. Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid filled needle housing. Uses a copper induction-damping ring that slows settles and steadies the compass needle quickly. Constructed with a powder-coated aluminum frame for optimal endurance. Package Contents: Cammenga Official US Military Tritium Lensatic Compass Cammenga 3HCS: Official US Military Tritium Lensatic Compass Clam Pack