ESD protect sensitive components Ceramic heating core,can use for a long time Plating alloy welding head, have longer life than ordinary welding head High temperature silicone on the handle,no worry about hands scalded For 936 soldering station The electric soldering iron includes one 900M-T-I hot iron tip Replacement handle for 852D+, 853D, 878AD, 898D, 936B, 937D Usage: Welding can be carried out 2 minutes after the electricity Can be used at welding temperature;unplug the power if not used for long time to extend life of the heater and iron head Tin should be on iron head in use and after use Attentions: Strong acidic flux is avoided for welding In use, iron can not be knocked and black oxide in the head can not be cleared bu file Thermo elements andiron head are strictly prohibited to be demolished or replaced when iron is in electricity It is normal for heating elements to have a slight fever with smoke after the first electricity, they ll disappear after 10 minutes The configured iron base and welding materials should be grounded reliably Power wires and heating core should be replaced by full-time staff when they do not work well type: 5Hole Colour:Black Material:plastic+metal Package Contents: 1 x Heated soldering pen(Due to different product batches, the appearance may be different, which does not affect use.) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.