タイトルまたは説明

A professional mirror compass for precise directional measurements. features a sighting hole at the bottom of the mirror, making it easier to take a correct bearing. 3.*5 x 2.5 inch clear plastic base plate *-inch ruler measurement; also centimeter ruler Grid lines at 1:*4, **0 and 1:*2, **0 scales Rotating dial with 2 degree increments Operates in temperatures down to **0 degrees fahrenheit Self-cleaning capsule bearing Liquid-filled for steady needle Individually balanced tungsten steel needle Adjustable declination correction scale Easy-to-use extra-large luminous markings Built-in magnifying lens with four-fold magnification Adjustable nylon neck cord Weighs 2.*5 oz. more information please email:*****