The 5103N Oscilloscope is a single beam, split-screen storage mainframe with an 6.5", 8 x 10 division CRT. Features include separate upper and lower store modes, internal graticule, beam finder, current/voltage/time calibrator, and DC coupled Z-axis input. The versatility of the required 5000-Series plug-ins (sold separately) plus the ability of storage makes this scope an excellent choice to fulfill most applications.