• Dual line rate scanning to ensure signal compatibility • Aspect ratio switchable 4:3 or 1:1 • Excellent scan regulation • High resolution linear grey scale (16 discernible levels   of black and white) • Rugged metal case construction for commercial and   industrial environments • Pre-tapped mounting holes (VEM-175) for ceiling or wall   mounting applications • Easy access up-front adjustment • BNC connectors for loopthrough of multiple monitors   displaying the identical signal • Full regulatory approvals • Differential inputs for use with long cable lengths