As long as we're talking about data logging in RVs...
I use a wireless monitor system that logs data every 5 minutes with multiple wireless temperature sensors (fridge, freezer, Indoor, Outdoor, Wet bay) and also battery volts, amps, watts and state of charge. I can see my RV temperatures and battery data over the internet and get email alerts if I want.
RV Whisper monitor systempricingThey are working on adding wireless propane sensors. shore power monitoring and door open/close sensors.
All kinds of cool stuff I don't need, but can't resist. Actually, I really like knowing my dog is not overheating when I have to leaver her behind for a few hours. And when I camp without electricity for a week it is nice to be able to see how my solar system recharged my batteries (or not) every day.
