UbiBot WS1 PRO Wireless Temperature Monitor, Thermometer, Humidity Meter, Remote Temperature Data Logger, Free App Alert(2.4GHz WiFi only, no hub required, IFTTT)

Pros-1- The online platform seems to be quite good it shows all the relevant data.2- Relatively easy to set up with wifi and the "Android App"Cons-1- The main problem is the accuracy of the Humidity reading it seem to be about four percent low when compared with calibrated monitors.2- You can calibrate the online readings through the web portal but it does not change the readings on the Console display!3- The display is not brilliant very pore contrast and no adjustment. The backlight is also very dim and only stays on for a couple of seconds or so.4- I have the external temp/ humidity probe but only the temperature is shown on the Console display, both are shown on the app and web portal.5- Not sure if this is really a con- But what is the Light Sensor and readings for, in a domestic environment its not required.6- The "Android App is very bacic at the present time, I think they are working on it so hopefully it will improve.

I bought this plus a second sensor (without display) to monitor temperature and humidity in a property and garage which are not occupied 100% of the time. Both units have worked absolutely reliably since purchase and, unusually, I find that the batteries last considerably longer than advertised (I have minimised the frequency of data upload). The only problem I encountered was after an upgrade to the app. The upgrade itself improved the screen layout and functionality but, initially, resulted in a lot of "hangs" on a Samsung Galaxy S10+. I gave feedback via Play Store and, to my surprise, quickly received feedback from the developer and, shortly thereafter, a bug-free update was released. Impressive!

Really useful gadget to monitor my hot tub shed