adjustable hand tool soldering iron lcd display kit multifunctional multimeter

a soldering iron can transfer heat to things like wires, transistors, and printed circuit boards. when the appropriate areas are heated properly, the soldering iron is applied. there is a spin knob on the soldering iron which is safe and convenient for you to control the heating temperature. and the insulating silicon gel prevents the iron from dropping effectively. you can use the multimeter for testing and dc voltage, and dc current, re