I run a food bank and we're just about to start collecting frozen food. As part of the logistics, we need to measure the temperature of the freezer twice a day. This is going to be an arse ache because other than when we bring the food to the freezer and distribute the food, we are not in the area of the freezer.
I want a thermometer that sends temperature readings to my mobile phone remotely. I can find loads that will do it via Bluetooth if you're in the area, but haven't managed to find anything that I can log in completely remotely.
What do I need! Ideally for under £20 as believe it or not, foodbanks don't have loads of money, so I'll probably be paying for this one myself!