Siemens monitors from Siemens CNC control systems, such as the Siemens 3M, 3T, 805, 810M, 810T, 820, 840C controls. Replacement Monitors for Siemens controlled machines, including lathes, milling machines. CNC Electronics West offer excellent prices compared to the OEM and any other suppliers in the US and cover associated brands to Siemens such as Magnetek. Yep – no exchange here. New off the shelve Siemens monitor replacements or 24 hour turnaround rebuilds on the more unique Siemens monitors, contact for details. 1 year warranty on CRT based monitors, and 2 year on LCD replacement equivalents or rebuilds. Call for details !