n turn tin on for one second and then pick up and use, easy to handle tiny solder joints under the microscope.
3. In the working state, use the handle metl ring to touch the heating touch block above the main machine, and immediately raise temperature by 70 degrees, and automatically return to the set temperature after 15 seconds.
4. With temperature conversion, buzzer switch, temperature calibration, auto-sleep and key locking function.
5. Four memory buttons, one second ready, three second sto