Advanced technocracy inc. Is manufacturer, exporter & supplier of profile projector. Having 200mm dia rotatable screen with vernier reading of 1 minute scale. Halogen bulb (12v 100w) with solid state variable light control built in transformer workable on 220v ac main. Stage x-y movement on ball bearing slides. Having micrometer (50mm dia) l.c.01 or 0.005mm fixed magnification 10x or 20x. Having transmitted light in card board box.