[RE-wrenches] SWH data logging

[Kelly Keilwitz, Whidbey Sun & Wind]

Thermal wrenches,
We have a customer who wants to log the energy gain of his SHW system.
The only viable option we've found is by Resol (also rebranded by Caleffi)
which includes their top-line controller (~$280) in conjunction with their
data logger, DL-2 ($500). With markup and installation this system will cost
our customer over $1K.

Are there any other AFFORDABLE options out there, that include data logging
to a computer or web interface?

Thanks,
-Kelly

Kelly Keilwitz, P.E.
Whidbey Sun & Wind, LLC
Renewable Energy Systems
NABCEP Certified PV Installer
987 Wanamaker Rd, 
Coupeville, WA 98239
PH & FAX 360-678-7131
sunwind at whidbeysunwind.com