Ambient Weather WS-3000-X5 Thermo-Hygrometer Wireless Monitor w/ 5 Remote Sensors - Logging, Graphing, Alarming, Radio Controlled Clock

While it was expensive it was the only multichannel data logging thermometer I could find.

So I just got this today, and my initial impression is that this was engineered very carefully. All the sensors connected easily, even after unplugging and moving the base unit. When I had the sensors all together after putting batteries in them, they all were very close in their readings. Despite the base unit's small size it is easy to read. Each zone/sensor shows temp, humidity, battery, and signal strength. The zones can be named, but the options are very limited (see other reviews). My opinion is that it does the important part very well: showing remote temps and humidity. I also like that the sensors themselves also display the temp and humidity. Okay, now the nit-picky part. The display could have some better layout options. Like only showing the graph only when I want to see it, and otherwise using the space for bigger display of the time. Or maybe showing the graph fullscreen when I want to see the history. Or having more labels for the zones. (Why have Wine Cellar and Cigar as options but not Shop or Garage?) So, one other note that I feel I should mention is that this has readable documentation written by native English speakers. I read a lot of documentation, and I've written it myself; this company really put in the effort to provide the end-user with good instructions. I will update this review in the future if the product doesn't live up to its initial promise, but as of today I am very impressed.

Très dispendieux Petit écran Produit devrait valoir au moins 80 % moins cher...c'est une arnaque pour faire de l'argent

Edit: I bought this 4 years ago and it has been flawless ever since! Extra remotes are available with probes on a long cord that are very useful. After this many years the remotes sometimes loose their display, but the extremes of my greenhouse are pretty hard on them. They still send the data though. Love this unit. Ambient Weather WS-3000-X5 Thermo-Hygrometer Wireless Monitor w/ 5 Remote Sensors. This IS the unit with 5 remote sensors. Highly recommended. Worked perfectly, right out of the box. After programming, I tested the sending units on a shelf together and they were all within 1/10 of each other. The screen is easy to view and use. Programming is fairly simple after reading the directions. (Write a number on each sensor as you program it to avoid confusion) Each sensor also has a display! That's great! I love that different time lengths can be programmed to view on the screen. The range is great. My greenhouse is about 100 feet from the house, with no problem going through 2 sets of walls. I even have one buried in a compost pile ( in a ziplock) and it transmits just fine. The memory function is useful and fairly straight forward. The price is very reasonable for 5 sensors and a nice display. I've used it for about 2 months with no replaced batteries and no problems. This is a great unit.

I've looked everywhere for a weather station with multiple sensors *and* which allows you to save/download the data. I'm interested in understanding the difference in temperature in different rooms in our house versus the outside temperature over days as well as longer trends like over years, and the WS-3000 does exactly that. I love that I also get a real-time plot of the temperature history: I can't tell you how much better you understand both the inside and outside temperature/humidity when you can see the trend rather than just the instantaneous value. The accuracy of the 5 included sensors is amazing. I verified this by letting all 5 sit together for a few hours after which their temperatures all read within a 0.5 deg F of each other and humidity was within 2 percentage points. I've attached the picture showing this. Note: when I first powered the sensors up after adding batteries, they were not very accurate and initially I was concerned. But as the instructions clearly state, you have to wait quite a while (1-2 hours) for them to stabilize. And after doing that, they indeed are very accurate. There are two reasons I can't give this device 5 stars. First, the interface on the main station is poor. In this day and age of mobile phone apps where user interface is everything, looking at the screen of the station is the equivalent of looking at a website from the 1990s. it's just clunky and non-intuitive. Just look at my attached image and you can see how hard it is to figure out which temp is which on the graph. And the customization of the interface is poor. Why can't I set the colors of each graph? Or set the y-axis? You can at least choose to set the x-axis between 12, 24, 48, and 72 hours (I believe those are the options), but need the same for the y-axis. Each number should be color coded where the temp is listed so we don't need to read the tiny little legend to figure out which temp is which on the plot. And clicking through the settings menu is also painful. It's like using an old TV menu interface. Anyway, these guys should hire someone from a company like Uber or Lyft who have made the interface the top priority. It's really old school to spend so much time on the underlying functionality (which is great) but then fail to appreciate that this functionality is diminished without providing a good interface to fully realize that functionality. My second major complaint is how clunky interfacing with the weather station is via a laptop. First, you have to supply your own Micro SD card if you want the data archived. That's all fine, but what they don't make clear is that the card can't be bigger than 32 Gb or it doesn't work. These days, that restriction seems so unnecessary given that most of us are buying SD cards bigger than that. I bought a 64 Gb just for this device not knowing about the limit. Fortunately, you can partition your card so that one partition is 32 Gb, but it's such a pain. Also, the app that you can download to your laptop that allows you to interface with the SD card has an even worse user interface than the weather station itself. Of course, you can just grab the data (it's in a text file) and pull it up yourself in whatever software you want (like Excel), but it's nice to be able to quickly explore the datasets with the software and this is brutally clunky. A request: like my digital photoframe, Ambient Weather needs to add a motion sensor to the station that turns the screen off when it doesn't sense motion for, say, 5 minutes, and then turns it on when it does sense motion. This works really great for my digital photoframe and all digital devices these days because it's such a waste to have so much energy being burned and so much unnecessary light being produced. Conclusion: I've been using the WS-3000 for about 4 months now and the basic functionality is great. After doing research, this seems to be the best station in terms of allowing you to have multiple sensors and download the data. But Ambient Weather needs to make the user interface a priority rather than an afterthought.