La Crosse Technology WS-9160UV3 Digital Indoor Outdoor Thermometer Wireless - Multi-Format Remote Temperature Sensor, Temperature Humidity Monitor with Manual Settings and 24-hr Display

Very easy to read, set, reset (change batteries), and presents pretty accurate temperatures. Easy to mount, looks nice, handy in our RV (and the 2nd unit in our bedroom, to add to the others we have in our house). I will be setting the remote outside in the shade, in a freezer type zip-lock baggie, and try not to forget it (I have a set of reminders (highly recommended) from Camping World that I place on my steering wheel, called 'RV Minders', which are great). I wish Amazon carried these. It functions well and I have experience with several LaCrosse units in my house (and other types); Atomic clocks, Sky Scan and Oregon Scientific. Nothing new here.Most people forget how to program and reset but I do this 1-2 times a year for all (6) of my remote units. Also, mixed, old, or cold batteries affect these negatively. I do not recommend Lithium batteries (like Energizer) or rechargables, for any units like this. I recommend Costco Kirkland batteries. This unit works very well despite bad reviews! Just read the instructions and understand them and get some experience.Expect any device like this to give you 'an idea' of the temperatures, but do not look for ACCURACY unless you spend hundreds or thousands of dollars. Even AccuWeather, or, The Weather Channel, is not exact, and all of the weather channels and gadgets can vary quite a bit, especially since their sensors are located in different places (can be miles apart) i.e. North Hollywood, CA, temps. can be sensed from Burbank, Van Nuys, L.A. or even hot Woodland Hills.Most of the bad reviewers have poor expectations or lack experience in using these devices. One does not get 'accurate' with 'inexpensive', and, you do not hire technicians to adjust your settings or set these up for you. 'So what' if it is off 3 degrees, if it is around 20 it is cold, if around 90 it is hot? If you are around 70-80 it is going to be comfortable. The temperature, and barometric pressure, can vary a lot in just 100 yards, or in sun, or shade!! A major internet weather station takes our temperature reading from the nearest airport, 20 miles away in a valley, which varies a lot from our temperature near the mountains, locally. Expect an 'idea' of the temperature, not 'accuracy', and these will work fine. And, save the instructions for resets when you change batteries (change the remote first). Protect the remote from rain, wind, sprinklers, and damage.I bought a second unit in July 2013 and it works great! I made changes above. Both units have easy-to-access batteries; no small screws - thumb slides or latches, which are quick and easy. Some other units have small screws to remove. I recommend freezer zip-lock bags to protect them.

This is just enough weather station for me. I work at home, so I don't need a full weather report with rain predictions and so forth before starting my day. I have plenty of apps, websites, and TV forecasters when I want that. I do like knowing how warm/cold it is outside, though, and the clock is clear and easy to read. The unit is easy to set up and setting the clock is very intuitive (no scrambling around for the directions to know how many times to push and hold a bunch of tiny, confusing buttons). I had another one just like this, but the batteries in the transmitter leaked and after almost 10 years, caused the transmitter to stop working. I decided to get another whole unit just in case the transmitter wasn't the problem, but it was, so now I handily have receivers in a couple different rooms (note that you can also add transmitters if you want to monitor different areas in your yard).This handy gadget lets me save quite a bit on air conditioning in the summer. In the morning, when it's cooler outside, I open all the windows. I watch the outside temperature and as it gets warmer, I close the windows and trap the cool air inside. In the evening I do the same thing, using a window fan to help exhaust the warm air out of the house. During the day, my house averages about 8-10 degrees cooler than outside on all but the hottest and most humid days, so it's not always enough, but it often is.

The Good: Set-up was easy and the display is very easy to read. Heads up, though: Anyone wanting time displayed with "atomic clock" accuracy should look elsewhere. This one has an accurate quartz clock, but it does not receive & synchronize to WWV-B signals. I knew this in advance, so it is not a "negative" for me.The Bad: The following may not matter to many users, but it did to me: I found that reading & resetting the recorded "daily high" and "daily low" temperatures was awkward, it even involved manipulating buttons that were out of sight. My previous indoor/outdoor unit (many years older) was much more user friendly in that respect. Although this is an apparent successor model, I consider it to be a step backward. That's unfortunate, because I like it well enough otherwise, and my aging eyes sure appreciate the larger digital display.The Ugly: The model number displayed on the product box matched the model that I ordered, but the unit inside the box was NOT the model that I ordered. Granted, the two models are identically priced and differ only in their frequency of operation (something I only learned through considerable research). In this case it was not a deal breaker because the frequency of operation is not a critical issue for me. However, others may consider such arbitrary product substitution to be misleading and even fraudulent. I won't go that far, but I do think that sort of thing ought not be perpetrated on consumers.