WESD51 Lockout Pencil Tip

I just received a very nice Weller WESD51 soldering station from work where we had a few that just weren’t frequently used. I was annoyed, however, to find out that the temperature lockout was set – that is, I couldn’t raise the temperature above an arbitrary value set by someone as an upper limit earlier. I was more annoyed to find out that there’s no control on the panel to set this. Instead, there’s some silly magic wand that you’re supposed to hold over a logo on the panel to get the job done. A wand that I didn’t have. So I was looking around online to try to figure out what the thing was, and I noticed it looked like the tip was a little magnet. And so it is – there’s a magnetic reed switch mounted underneath the “ESD Safe” logo on this unit that controls a number of functions. In the end, I am now just keeping one of the many magnetic reaching wand pencils I have laying around next to my station to set the lockout temperature. Hopefully, if you found this via Google, you’re less confused now.

As an aside, a bunch of the other settings of the unit are managed via this reed switch too. I’m including a link to the documentation here, since it was a bit difficult to track down.
Weller WESD51 Soldering Station Documentation


  1. chris
    November 18, 2009

    THANKS SO MUCH! I was wondering the same thing.

  2. Joe
    October 3, 2010

    Yep, Mine didn’t come with the Wireless Pencil. From the pictures I saw online, I suspected a magnet. Thanks for proving the matter and sparing me ordering a Wireless Pencil (aka magnet on plastic stick)

  3. Gordon Wallace
    October 1, 2013

    Good man!

  4. January 16, 2014

    You’re the man! Works like a charm.

  5. Arthika
    March 8, 2017

    Thanks, I was wondering the same thing

  6. Cliff
    June 3, 2018

    Thanks for the info! I just switched my Weller over to C. Worked like a charm!

  7. Bruce G.
    December 11, 2023

    It is 2023 now, so where can I get/order the “lockout magic pencil wand/magnet”?? Has anyone tried any small magnet?
    Thank you.

  8. December 11, 2023

    I can confirm that “any small magnet” will certainly do – just tape it to the end of a pencil or something for convenience 🙂

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