New brewer here. I have my first 2 batches in fermenters right now. I am quickly learning that it's all about temperature control.
I found a decent $11 digital thermometer with 2 temperature sensors and a min/max setting. I used a few to check spots around the house, as well as to monitor ambient and fermenter temperatures for the batches in progress.
But these thermometers have disadvantages. For one, if you handle them (say to check min/max) the heat from your hands will register on the internal sensor. (The probe, attached to the fermenter, is OK.)
A simple min/max is only part of the story anyway. So, I am looking for a way to capture temperature data over time and plot it... without a nearby computer turned on to capture the data all the time.
If anyone has found a gadget they like, I'd appreciate a pointer.