This is a nice wireless thermometer, with good range and accuracy. Though the precision is to 0.1°F, the accuracy is more like 1.0°F, since multiple remote sensors and the base station's indoor readings vary by that much +/- when kept at the exact same indoor location for several hours. From what I've read in other articles, variation of a couple of degrees is common in similar thermometers. The display is very easy to read, except for the display of which of the up to 3 remote sensors is being displayed. I like to have the base automatically rotate through the display of each of the three remote sensors, and I have to get right up close to read the tiny little 1, 2, or 3 that appears in the lower left corner. You need to set the time manually, but it keeps good time and the clock is easy to read. My only real complaint is the difficulty getting remote sensors for it. Admittedly, the description clearly says "Display can receive up to 3 Temp/Humidity sensors (TX141TH-BCHv3 only) ". But if you search for that string on Amazon, or on the web with google, you get numerous different wireless temperature sensors (as well as weather stations). On Amazon, the first wireless temperature sensor that shows up is TX141TH-BV3. This looks identical to the sensor that comes with it, and in fact it is the same model number. So I ordered 2 of those. Reading the instructions for the base station, it says to set the sensor to a different channel (1 or 2) before inserting the batteries. But examining the sensors in detail, I couldn't find any way to set the channel. I called Amazon technical support, and after a rather lengthy exchange, the agent finally said that the sensor was not compatible with the base station. I asked her for the url of a sensor that was compatible, and she told me I should call the manufacturer, and gave me a phone number. I called them, they gave me the same model number in Amazon's description, but looking it up on the lacrossetechnology.com website said that it was sold out! I asked how soon it might be back in stock, or where else I could find one, and she didn't know. Eventually, I found the right model on weathershack.com, so I ordered and got two of them with no problem. Inside the battery compartment of this model, there is indeed a slide switch for cheannel 1, 2, or 3. And I just now found that ebay.com has some listed as new. A comment about the range. I initially bought the ThermoPro TP62 with two additional sensors. It claims a range of 200 ft. In my application, one of the sensors needs to be just about 200 ft from the base, and there are some walls in the way. When I first set it up, that sensor seemed to work, but after only a day or two, the connection was lost. Tried several times bringing the sensor near the base (and vice-versa), and removing/inserting batteries to get the connection reestablished, but it always lost the connection once they were in their final positions. The La Crosse has had no problem at all with the connection using the exact same mounting screws. We haven't had enough bad weather to evaluate how weatherproof it is. Experience with previous La Crosse sensors, and looking at the design, suggests it's probably pretty good, at least when mounted vertically against a North-facing wall under the eves. A further comment about mounting. The keyhole mounting slots on both the base and remote sensors were not very well designed. Hard to find screws with appropriate head and shank sizes, and when found, very finicky about how much the head can protrude, and even then sliding down in to the narrow channel did not feel secure. When t he door was slammed next to the base unit, it fell off the wall to the concrete floor, the display. Lastly, I was disappointed to find that the Min/Max button only shows the Min and Max indoor temperatures, not outdoor. Changing my rating to 3 because if this!
