14F freezer is good enough
Have been having these doubts for some time, 0F/-18C "recommended" by FDA and similar Canadian health authority, while my meat and fish remain quite hard and I am still alive with freezer temps rangin...
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Hmmmm .... I just hang a small classic thermometer made for RV refrigerator shelves (bought from Camping World) in both the fresh food and freezer sections of our RV's refrigerator.
No batteries to ever change. I just peek at them whenever I open the freezer or fresh food section. This method couldn't be simpler.
HOWEVER, on the dash in the cab of our motorhome I also have a voltmeter mounted that shows whether or not the RV refrigerator is getting 12 volts from the coach batteries. I learned the hardway to have this readout right on the dash after driving down the road aways once - after turning off battery power to the coach while gassing up several miles back and then forgetting to turn it back on before pulling out of the gas station! (This voltmeter also of course shows engine alternator output voltage being maintained on the coach's 12 volt system when underway.)
No batteries to ever change. I just peek at them whenever I open the freezer or fresh food section. This method couldn't be simpler.
HOWEVER, on the dash in the cab of our motorhome I also have a voltmeter mounted that shows whether or not the RV refrigerator is getting 12 volts from the coach batteries. I learned the hardway to have this readout right on the dash after driving down the road aways once - after turning off battery power to the coach while gassing up several miles back and then forgetting to turn it back on before pulling out of the gas station! (This voltmeter also of course shows engine alternator output voltage being maintained on the coach's 12 volt system when underway.)
