1. It shall not be used in flammable and corrosive gaseous environment.

2. Do not knock at will, so as not to shorten the life by touching the line.

3. After several times of use, the copper bar should be taken down to remove the oxide layer, so as not to cause the phenomenon of being unable to be taken out.

4. Do not place the soldering iron in a damp place to avoid leakage of electricity from damp.

5. Power supply is 220V plus or minus 10% ac. When connecting the power cord handle, do not make the wire rotate with the handle to avoid short circuit.

6. When the insulation layer of the power cord is found damaged, it should be replaced in time to ensure safety.

7. The power cord adopts a three-core soft wire with grounding, which must be grounded when used.