The Mid Continent MD200-707 is a 3" Lighted Glideslope course deviation Indicator the fits standard 3 1/8" panel cutouts. It is an all metal construction with stainless steel ball bearings in critical areas. It has optional course datum synchro output. The deviation bars/pointers hide from view when invalid. LED annunciations for NAC, GPS, VLOC and to/from indication. True OBS course resolver output. It is compatible with WAAS GPS receivers. Pin-for0pin replacement for all legacy MD200 models. Has high-quality d-sub connectors included with gold-plated pins. FAA TSO and ETSO certified for use with all GPS and VOR systems. Designed and built in Wichita Kansas, USA.