THURLBY 1905a Intelligent Multimeter

I bought this item for few $$ couple of weeks back. Its a Desktop Digital Multimeter. It may very old but still in working condition.

Some General Description according to the Product user manuel.

This instrument is a mains operated, high performance autoranging multimeter providing 5½ digit resolution (± 210000 counts) switchable to 4½ digits (± 21000 counts) for a higher reading rate. It has a 7-segment l.e.d. display coupled with l.e.d. annunciators for displayed units and instrument status.


About pasanlaksiri

I am K.G. Pasan Laksiri Karunanayake and founder of Since 2011 I have specialized in designing custom electronics for industrial applications. Over the years I have engineered a broad range of custom industrial products. When I work with a client I place a very high value on integrity, honesty and clear communication. With years of field experience I have learned that all business relationships are personal relationships. The more I know about the client and his project, the more I can contribute to a successful end product. After I learn about the client requirement I always give them the better understanding and clear picture about, how the end product will function in real world. In addition to the client requirement, I also offer lots of options, features and improvements. And I always very concern about the end product quality.
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4 Responses to THURLBY 1905a Intelligent Multimeter

  1. SP says:

    Hi, do you by any chance still have the operator manual for the 1905a multimeter, if so, can you please e-mail scanned copy of it to me?

    Also, do you find it takes a long time before measurements can be made?



    • pasanlaksiri says:

      Hi, I only have its Service Manual


      • SP says:


        Yes, I too only have its service manual.

        When powered for the first time, the display shows “CC 02”, and then the display shows invalid readings for a few minutes. Do you know what “CC 02” means? I notice your pictures show the meter displaying “Cd 00” – what does that mean?

        Does your meter show invalid meter readings for a few minutes before correct readings can be obtained?

        Thanks for any information.


  2. brian says:

    User Manual wanted.


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