Geomaster/China offer professional Surveying Equipment--Compass: Optical Compass, Digital Compass,Pocket Compass, Mining Compass Digital Compass JS-705, JS-707, JS-708ModelJS-705JS-707JS-708FeaturesIdeal for outdoor activities such as hiking, climbing, surveying…Digital compass with PNI-American sensorDirection tracking, 20 direction memoriesTwo row display for lap/split time measurement with 1/ ...