When it comes to outdoor thermometers, you’ll want to think about the range of the sensors as well as the temperature accuracy of whichever product you choose. The range and temperature accuracy usually go hand in hand, as the distance the sensor is from your thermometer affects how accurate the reading is.
Most sensors work within a few hundred feet, which is plenty of space for most people who own a home. You’ll easily be able to place it outside and have it reach your home. There’s plenty of room for most people to easily work with, so if you have an average sized home, then you won’t have to worry about this aspect as much. However, if you have a bigger home, you may want to think about where you want to keep everything.
Temperature accuracy is a much more important thing to think about. You don’t want an outdoor thermometer that’s off by ten degrees every time you look at it. Most outdoor thermometers will fluctuate by one degree, but this isn’t typically a big change for most people. You can look at reviews of the thermometer before you buy it to see what people say about the accuracy of it!