On Fri, Jul 15, 2022, 17:04 Russell Senior <russ...@personaltelco.net> wrote:
> I have used a bunch of these: > > https://www.amazon.com/gp/product/B00T0K8NXC/ > and > https://www.amazon.com/gp/product/B01G7BE9WK/ > > with https://github.com/merbanan/rtl_433 and an rtlsdr (like this: > https://www.amazon.com/gp/product/B00VZ1AWQA/) to decode. > > For improved accuracy, I calibrated the sensors in an icebath (in > several layers of ziplock bags and desiccant) for 0 degrees offset. > . These are good sensors with great battery life. I also have ThermPro sensors, they work, but the ones Russell lists are better, smaller and much longer battery life. I do not calibrate them. I care about being comfortable and saving power rather than worry about whether the temperature reading is 0.2-0.3 degrees different from absolutely correct value. -T
