FEATURES - Easy to read 2" direct-reading dial - Hardened steel pivot and sapphire jewel movement - Built-in roller diaphragm for extended temperature operating range - International safety yellow case - Silicon impact resistant case with neck lanyard - Compact size for easy handling and storage - QuickSight V-notch and lubber line for easy heading alignment - Non-electric chem sticks provide 18 hours of night lighting - Approx. shipping weight: 4 oz (113g)