Xytronic lf 852dii digital display 1000w hot air smd rework system xytronic 79 510312 a spare or replacement heating element for the xytronic lf 852dii digital display 1000w hot air smd rework system 85 1229 xytronic 79 510312 lf 852dii smd hot air rework station 1000w heater