The Telwin Welding Machine SUPERIOR TIG 421 Description: Pulse and easy pulse operation; 9 customized Welding Machine programmes; Anti-stick device; Remote control and Gt.Rt.At. water cooling connector; Storage on on-board E2PROM of the last 10 alarms; Thermostatic, overvoltage, undervoltage, inside dirtiness, overcurrent, phase failure, water cooling unit protections;Complete with TIG Welding Machine accessoriest.