Omnisight navigation ME model includes all scales, zone 3. Provides forward and reciprocal bearings, plus 90 degree quadrants and 6400 point MILS, the Omni-Sight spot-through compass offers the convenience of multiple precision instruments in one hand-held unit. Steadfast aluminum housing ensures ruggedness and reliability, and the internal rare-earth magnet guarantees accuracy and resists magnetic interference. Illuminated readout light piping gives a clear bright readout even in lowlight. Made in the U.S.A with U-PROOF Warranty; Buy It, Try It, Bust It, Return It - No Questions.