Includes WES51PU power unit, PES51 soldering pencil, PH50 stand, sponge Improved plug on the PES51 iron, new receptacle on WES51PU power unit New receptacle for easier iron replacement Designed for continuous production soldering Slim, comfortable pencil, with ETA tip, reduces operator fatigue Tip temperature offset capability Allows user to reset station temperature to match in tip sizes & styles Iron is fitted with a non-burnable silicon rubber cord for safety UL and cUL listed and ESD safe to protect sensitive components Use ET series tips