ELECTRONICA EL430 Digital Readout Display. REPLACEMENT FOR FAULTY NEWALL SPHEROSYN & MICROSYN BALL SCALE DISPLAYS. PROGRAMABLE RESOLUTION FROM 10microns to 1micron. SPECIFIC SOFTWARE FOR TURNING & MILLING APPLICATIONS. 1 TO 4 AXES WITH BUILT IN AXIS COUPLING. AUXILARY OPTION WITH 6RELAY OUTPUTS OPTION AVAILABLE, PROBE FUNCTION. The EL430 is a professional machine shop digital readout housed in a die-cast aluminium case. Designed as a direct low-cost replacement for expensive Ball-scale DRO. Fully loaded with all. The features you would expect including bolt-hole (PCD) patterns & tool-offset.