When the soldering not in use and put the soldering iron on the iron holder, it will auto standby after 10 minutes, heater is heating up to 200 ℃, nixie tube display STB，pick up the soldering iron and back to normal working mode.
GVDA Soldering Station GD318:
Pls Clink Below Photo and Read more details about this GVDA Soldering Station GD318 :
