Features1. Set the offset temperature -----Plug in the power and press and hold + - to build, then plug in the power, press the + - button to modify, if there is no button for three seconds, it will automatically save and exit;2. / conversion-----Press and hold the +- button at the same time in the OFF mode to enter the temperature symbol setting, press the + - button to switch, no button for three seconds, it will automatically save and exit;3. Sleep ON/OFF ----- In OFF mode, press and hold the + or - button to enter the sleep on/off setting, press the + - button to switch, no button for three seconds, it will automatically save and exit90W Soldering Iron Feature1.Blue LCD DisplayWith high-definition LCD screen display makes the 90W soldering iron easier to read the temperature. No need to find the right dial setting for each soldering job. Users can accurately adjust the solder iron temperature within 1-Degree increments from 180-480(356-896), effectively improve work efficiency.2.Rapid Heating and Safe WeldingThrough AD sampling, combined with PID calculation, the PWM output can be controlled, and the constant temperature control of the soldering iron core can be realized. Which is quick in temp rise within instability of voltage, it is also good for temperature compensation and accuracy temperature control.3.Automatic Sleeping ModeIn the power-on state, electric soldering iron will automatically enter the sleep mode when it is not working within 15 minutes. The soldering iron gun will automatically decrease the temperature to prevent the soldering iron heating core from burning out due to high temperature.4.Widely ApplicationVery Easy to Use. Great for hobbyists, beginners and professionals. For solder wires, repair electronics and circuit board, welding, jewelry, guitar, wiring, computers hardware, capacitors or accessories, crafts etc soldering job.5.Portable packaging it's perfect for classroom electronic work, home&office&factory repair, circuit design, jewelry, woods, crafts, DIY, guitar and more. You can take it anywhere and you will be able to find the tools you need in the carry bag. Our soldering iron is made of only the most high-quality materials, and contains no toxic or polluting elements.