Product review (5 stars): fantastic temperature and humidity monitors, easy to install and use if you can plug bridge into a router.
very nice idea. i have 3 sets installed in friends houses to monitor their temps in case of a boiler malfunction while they are away. easy to install (don't forget to register the bridge by pushing register button 4-6 seconds only), and they you go to their website and download their software and put in the mac address on the bottom of the bridge. voila! you can see their 3 sensors. You can install up to 3 sensors for each bridge,. you can then label each one remotely from your own computer and set colors and alarm parameters. it will email you and send a text if any of the sensors go over or under the alarm levels. once you install the sensors and bridge wherever you want them, all settings are done from your computer. I have 3 bridges with 3 sensors each  showing on my computer screen at the same time. It is a great system. REMEMBER that you have to connect the bridge directly by ethernet cable to a router with active internet connection. this is very important, as otherwise you will have nothing. they have been a huge help in monitoring temperature. I even have a sensor installed out back in my Sauna to see when it is hot, tho the sensor only registers up to 158 degrees or so. sensors will sent to the bridge quite a way - maybe 200 feet or so.  I am VERY pleased with cost, ease of install, functionality, and even customer service when i called with a question.