Emailed
[email protected] - still waiting for reply.
Chances are that it's a rebadged 'stock' item. Try a broad search for
"Digital Counter", filter through 'search within results' for something
obvious, such as frequency, supply voltage, input sockets, supplied
accessory probe
, then look at the pics. It doesn't always work, but on
the other hand, destruction books for generic test gear usually follow
along the same lines. You download one, you've downloaded most of 'em.