* With big power heater, only within 25minutes to reach 842°Ffrom room temperature, (Different items with a little different heating time.) * With microcomputer digital control and double displays. make it more accurate heating and fast temperature returning capability. * The boiler made of alloy, can resist high temperature, cauterization and abrasion, largely prolong the life. * With temperature setting and locking function, will not be affected by wrong operation. * The setting value will be saved for long time, and can not be affected by power on or off.