"Glenn Ashmore" wrote in message
news:tbH7g.22412$iF3.13428@dukeread01...
Here is an idea that will cost about $150 and do a lot more than measure
the
amps.

A Hobo 12-012 data logger with internal temp and RH sensors and 2 external
sensors.

http://www.onsetcomp.com/Products/Pr...a_loggers.html
Plug a temperature sensor in one of the external inputs and an Ampsense
Hall
effect current sensor on the other. http://www.ampsense.com/

With the free basic Hobo software you can capture the data and load it
into
a spreadsheet. That will give you the external temp and RH, internal box
temp and amp draw on a common timeline.


Having the temperature difference would be a useful piece of additional
information. But, I will have to think of some other uses for this device
before parting with $150.00 for my test

GBM