The surveying compasses are specifically designed to be very handy and compact. They are used for mountain, forest and land surveying work. Horizontal readings is available with LS-25 & S-25, and horizontal circle is provided with unique "O-BAC" device for easy zero-setting. The telescope of LS-25 has a level which includes a reflecting mirror so that the bubble may be easily seen while sighting the telescope. Stadia survey is available with the telescope reticle.