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On a Dutch auction site I acquired a nice fully functional ESI calcumeter 4100.
This handheld device combines a RPN based calculator with a 3 1/2 digit digital multimeter.
A picture of this calcumeter is available
On the internet I couldn't find any information about this device.
Where to find more information?

Edited: 27 May 2013, 12:57 p.m. after one or more responses were posted


Very interesting piece of kit (I'm somewhat envoius ;-) )!

Where to find more information?

Google finds this reference: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6367762&url=http%3A%2F%2Fieeexplore.ieee.org%2Fstamp%2Fstamp.jsp%3Ftp%3D%26arnumber%3D6367762 (IEEE Spectrum, Vol. 15, Issue 11 (November 1978) features this device on pages 98-100.) Unfortunately, the article is not available online.

Hello Maximilian,

Thanks for your reply.

I also found this link but at my current work I don't have access to the IEEE articles.
I send an email to ESI, but I don't expect they still have any information.
The calcumeter has been added to my collection.

Edited: 27 May 2013, 12:58 p.m.