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JL294-3 Transistor Tester

By on April 30, 2011

transistor tester

I was informed by one of the blog reader about this tester. It seems to have some similar function with the DY294 Digital Transistor Tester. This tester is made in China and if you are currently using it i wish you can share about the capabilities of this tester. For more information of this tester you can click on the photo and use Google translation to translate it into the language you wanted to read.



  1. Russ

    May 1, 2011 at 7:53 pm

    I have one of these and it seems to me that it is a early version of the DY-294. I haven't used it in while but if your thinking of getting one I would recommend the DY-294. I think they do most of the same tests.

  2. admin

    May 2, 2011 at 6:00 am

    HI RUSS,

    Thanks for the info.


  3. Mircea

    May 2, 2011 at 1:32 pm

    This model you have and I'm proud of him and

  4. Amir Mukhtar

    May 3, 2011 at 3:51 pm

    its very nice device but need to be thinked , accuracy will be maintained by analogue meter testing .
    i like to test component with analogue AVO meter because off accuracy test and reliability.
    otherwise, its upto the repairer what will be the best precision test equipment for them.

    thanks you
    Amir mukhtar

  5. fjc36

    January 20, 2012 at 2:03 pm

    Dear Mr. Yong,
    Please give me a commit for DY294 vs JL 294-3.
    I need to do the test occasionly, most on HFE.
    Which one is convient to use? better functions? I can only afford one for my hobby.
    I also have a curve tracer with separate OSC for serious measurement.
    This one will be used for safe/fail and preliminary test.
    But accuracy is still wished.
    Please send me a mail soon. By the way, accuracy comes first than the multiple functions. If they are the same, I will choose DY294 with a external power plug, I do not trust the battery very much, specially test on larger size transister.

  6. admin

    January 20, 2012 at 2:54 pm


    I suggest that you get a normal digital multimeter that have the hfe function to test on the transistor which is much easier unless you want to buy the DY294. I do not have jl294-3 meter thus i can't give any comment on this.


  7. Ignacio Barriga Nuñez

    May 21, 2013 at 10:07 am

    Hola, yo tengo un probador de esotos el MC JL294-3, y no tengo mucha informacion de su uso y de los signos que tiene en Chino me imagino. Tendra algun manual de usuario o instructivo de uso?.

    Espero pueda ayudarme, gracias.

    • Jestine Yong

      May 21, 2013 at 11:13 am

      Hi Ignacio,

      Sorry i do not have such manual in English.


      • Ignacio Barriga Nuñez

        April 25, 2017 at 11:41 am

        Hi Jestine, do you have the manual in the original language?

        • Jestine Yong

          April 26, 2017 at 8:27 pm

          Hi Ignacio,

          I do not own this tester thus I do not have the manual-sorry.


      • Ignacio Barriga Nuñez

        April 25, 2017 at 11:44 am

        I have the transistor tester jl294-3, and a need the user manual


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