Is there no end to the number of different weather station combos that AcuRite has on the market? There probably is, but if you lined up every AcuRite unit in the parking lot of your local mall, you could probably run a 100-yard dash from one end of the line to the other and still have units left over. The AcuRite 02027A1 is one of the least expensive packages that AcuRite has available, but that's probably because, compared to most of their higher-end models, it doesn't do very much. It has their lowest-end outdoor sensor, a thermometer-hygrometer that you can hang from a tree to measure temperature and humidity. The 5" display is basic, but at least it's full-color and gives you a decent range of information (and connects wirelessly with the outdoor thermometer-hygrometer).
The information on the display includes the outdooor and indoor temperature and humidity, the time and date, a 12-to-24-hour weather-forecast icon, daily high and low records, the lunar phase (with a picture of the moon!), and the barometric pressure. It will take two weeks for the unit to calibrate itself to your local conditions and give accurate readings, but this is true of all AcuRite weather stations. The thermometer-hygrometer unit can tolerate temperatures down to 40 degrees below zero, Fahrenheit, so unless you live inside the Arctic Circle, you should have no problems with it. It can be placed up to 300 feet from the display and still communicate wirelessly, so if you have a large yard and want to measure conditions from the back fence, you're probably still within range.
If you're serious about weather and want one of AcuRite's more powerful stations, look for ones with their 5-in-1 outdoor sensor, like the AcuRite 01075RM. The 5-in-1 sensor adds wind speed and direction plus rainfall amount to the temperature and humidity. And for a much more impressive indoor display, one with five selectable screens packed with weather info and history, look at the newer AcuRite 01024M. AcuRite's competitors have some impressive models too, like the Ambient Weather WS-0900-IP and the Netatmo NWS01-US.
The 02027A1 is excellent as it provides the information that I need and accuracy can be tuned by calibrating indoor/outdoor temperature and humidity, and barometric pressure.
When I got this product, I first though the screen was defective, but after reading more reviews, it's just normal cheap screen.
Really easy to set up and seems to be accurate within a degree or two. The weather predictions and humidity readings have been pretty accurate.