Model # CT50e Wifi

Internet #205724678

Radio Thermostat 7-Day Wi-Fi Module Programmable Thermostat

Radio Thermostat

7-Day Wi-Fi Module Programmable Thermostat

$10962 /box

Frequently Bought Together

Product Overview

The CT50 is a Wi-Fi enabled thermostat that allows you to access it from anywhere you have an internet connection. You can also access it via iOS or Android devices via a free application. With advanced features the software knows when you are away from home an automatically turns down the temperature and when you get within a user specified range it turns the temperature back up so the house is comfortable when you arrive. Sleek 7-day programmable thermostat with touchscreen controls. The CT50 works with nearly any HVAC system - including traditional furnaces and heat pumps. The CT50 can control up to 2 stages of heat and 2 stages of cool. The CT50 allows you to program up to 4 independent periods per day. Auto Changeover mode available Includes Wi-Fi unsnap module - allows connection to Wife and/or our cloud services. Open API available to allow you to create your own interface. C wire required for Wi-Fi operation additional minimal annual fee required.

Info & Guides

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Name Easy Reader 7-Day Programmable Universal Digital Thermostat 1F95EZ-0671 7-Day Wi-Fi Module Programmable Thermostat Sensi Wi-Fi Programmable Thermostat and Wall Plate Bundle Wiser Air Wi-Fi Smart Programmable Thermostat with Comfort Boost and Touch Screen Display in White
Brand Emerson Radio Thermostat Emerson Schneider Electric
Ratings (3) (14) (439) (26)
Thermostat Program Type 7 - Day 7 - Day 7 - Day 7 - Day
Features Backlit Display,Battery Operated,Low Battery Indicator Automatic Heating/Cooling Changeover,Battery Operated,Touch Screen Automatic Heating/Cooling Changeover,Backlit Display,Battery Operated,Built-in Wi-Fi,Daylight Savings Time Ready,Lockable,Low Battery Indicator Automatic Heating/Cooling Changeover,Backlit Display,Built-in Wi-Fi,Daylight Savings Time Ready,Touch Screen
Color Family Whites Whites Whites Whites
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Warranty / Certifications

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Customer Questions & Answers

My old thermostat does not have C wire

My thermostat does not have C wire, only Y, RH, W, G; can I use it with out it, my use is to control the Temp from my IPhone; please advice what I can do
Asked by: colcar2068
The "C" or common wire is used to power the RadioThermostat WiFi module installed in the back of the thermostat that nominally runs on 24vac. Without a C wire, the thermostat will control the connected HVAC unit fine via its internal batteries, but WiFi connectivity won't work. In typical thermostats, only the hot side of the control voltage from the HVAC central unit's 24vac transformer runs down to the thermostat on the (usually red) "R" wire to the RH/RC terminal(s). There it is switched by tiny relays inside the thermostat to control the compressor on the (usually yellow) "Y" wire for cooling, burner/heat element on the (usually white) "W" wire for heating, and fan for both cooling and heating on the (usually green) "G" wire. Note the 3M-50 Manual's warning that the internal thermostat relay switching contacts are limited to 1 amp! An extra/spare wire between HVAC unit and thermostat is required; there are often unused wires in the cable between HVAC and thermostat. If present, I try to use the black wire to match standard color code of black for ground/neutral and - typically already present/used - red for hot. In the HVAC unit, find the 24vac transformer (almost always present, often close to the HVAC's control circuit board). Switch off power to the HVAC unit and connect this extra/spare wire to the "ground/neutral" side of that transformer. At the thermostat, connect the other end of this spare wire to the "C" terminal. Make other connections for your particular type of HVAC system per the 3M-50 Installation Guide Step-by-Step Wiring Diagrams beginning on Page 13 of that booklet included with all thermostats. Repower the HVAC unit; if the connection is correct, you should see the WiFi radio tower/wave LED on the left center of the thermostat display screen light and typically begin to flash yellow. If you connected the spare wire to the wrong side of the 24vac transformer in the HVAC unit, the LED will not flash and the new wire to the thermostat's C terminal needs to be switched to the other leg of that transformer in the HVAC unit (again, power off HVAC first). Once the radio LED is flashing yellow on the thermostat, follow directions to sync the thermostat with your home WiFi and then to your mobile device's app. Once properly synched, the radio LED should flash green.
Answered by: JonP
Date published: 2017-03-24

Cant the thermostat be program to turn on based on an outside temperature?

Cant the thermostat be program to turn on based on an outside temperature?
Asked by: fromtheland
Unless you physically mount the thermostat outside (noting it is not designed for direct exposure to the elements), this thermostat has no secondary temperature sensor to read temperature at any location remote from where the thermostat is itself mounted. There is also no interface through the WiFi module over which it could access such local weather information via the internet (AccuWeather, etc).
Answered by: JonP
Date published: 2017-03-24

if i program it form my phone would a person at the house be able to change it with out me being there

Asked by: liz
Yes, it can be locally overridden at the thermostat. However, it appears that at the next time a scheduled change point is reached in your pre-set program, the thermostat will revert back to the scheduled times and associated temperatures. Also note that overriding the fan switch manually on the left side of the thermostat will permanently override the fan setting.
Answered by: JonP
Date published: 2017-03-24

Hi, On Wink Page there is no mention of it's comparability with Radio Thermostat. Can you confir...

Hi, On Wink Page there is no mention of it's comparability with Radio Thermostat. Can you confirm that it is in fact supported?
Asked by: Al
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Customer Reviews

7-Day Wi-Fi Module Programmable Thermostat is rated 3.9 out of 5 by 14.
Rated 4 out of 5 by from This is the 5th thermostat of this model that I have purchased and installed with all working pro... This is the 5th thermostat of this model that I have purchased and installed with all working properly. In addition to use as a standard thermostat, I connected one of them in a (weather protected) exterior environment - using an added relay and control circuitry - to control the pump on my solar water heater to lock on when the outside temperature drops below freezing (to protect exposed system pipes/solar collectors from rupturing) as well as when it gets hot enough that circulation fluid might boil within the solar collectors (again leading to pipe rupture). Cons (4 star vs. 5 star rating): (1) Doesn't appear to interface to any other home automation products such as Amazon's Echo or Wink. Adding this interface at the local WiFi level would be a great upgrade, putting this product on-par with those costing 2 or 3 times as much. (2) Thermostats occasionally loose connectivity to supporting WiFi, requiring that they be re-linked. (3) Unlike other more expensive home automation thermostats, these only have a single point of presence at the thermostat vs. having one or more remote sensors to allow the thermostat to serve as a zone controller. Pros: (1) While the initial setup can be tricky (at least the first time, recommend downloading and printing the app's setup directions), the Android RadioThermostat app proved easy to use and very flexible, including both the ability to remotely monitor and set all of the thermostats features plus, on a separate screen, do detailed tracking of both temperature and connected HVAC run-time operation on a 24-hour day basis. (2) These thermostats are MUCH cheaper than other home automation alternatives.
Date published: 2017-03-23
Rated 4 out of 5 by from Purchased the CT50 from Home Depot back in Dec 2011 I paid $99 for the CT-50 back in 2011. I had a few hurdles during installation (i.e. hooking up an additional wire to the furnace and getting the registration with my wireless hub correct), but thanks you Youtube videos the entire process wasn't that painful. I purchased software for my PC (Thermostat for Windows) for I forget but not much that has a decent GUI (graphical user interface). Along with the Android and Apple versions it takes away squinting at the thermostat and has been a God send. I haven't gone on a binge to measure my energy savings, but we are managing our energy consumption much better and on average the temperature settings in the house are 5-8 degrees lower in the winter and about the same in the summer. Combine that with the savings realized when we're away. I highly recommend this thermostat.
Date published: 2015-03-18
Rated 2 out of 5 by from I really want to love this I really want to love these, but it's hard to. I have 3 of these units in my house. The first I bought three years ago so I could remotely monitor the settings of an apartment unit in my house. I also let the tenant have remote access to it. That one works well, most of the time. As a programmable thermostat it's great. The wifi receivers in them are just not quite up to snuff. They regularly stop communicating with my network. Wifi signal is strong enough for surfing where they are. I thought perhaps my router was the problem, so I upgraded to a newer unit able to take more connections, no change, played with router location and signal strength balancing, no change. 2 of my three total units regularly stop communicating for a day, then come back again. One of them has never once dropped its connection in the 2 years it's been online. But then one of them has not communicated in the last 7 months. The network strength is more than adequate in the location of all these units so I can only assume that it is the receivers on board that are at fault, the trick is there is seemingly little i can do to investigate that. I wish hardwired networked units were more common. Would be much simpler to just run a wire since I already had to run the power wire out to those spots anyway. I have one last zone in my house I would like to put on a wifi thermostat but, these have left a bit of a sour taste in my mouth to spend for another one. The website for configuration is quite nice, and I like the mobile app, it's just that the base technology seems to be lacking on these units.
Date published: 2016-08-11
Rated 4 out of 5 by from Very happy with this purchase This looks like identical hardware to the LockState LS-60i, but it is 30 dollars cheaper and uses a different web portal to interact with it wirelessly. Unlike the LockState, there are no monthly fees for the wireless feature. The LockState app looks like it is used to control a bunch of stuff around your house - not just your thermostat. Do not get the LS-60i unless you have other LockState products like a camera/lock. As for the CT-50, I have a couple widgets on an android homescreen for each of my AC units. It works great. Setup was kind of a pain because I didn't have a C-wire, but there are youtube videos out there that showed me how to work around it. Also, an iOS device is required for initial wireless setup. Sometimes the connection will drop for a bit, but that might be because of my network and not the thermostat. Overall, I'm quite pleased. I would purchase this again if I were in the market.
Date published: 2014-11-18
Rated 4 out of 5 by from Great Wi-Fi Smarth Thermostat The Radio CT-50 is a great product for a great price! Installation was easy and setting up was a breeze especially considering the mobile app is easy to use. I am able to adjust the temperature using my iPad while on my couch, which is nice during these really cold months! The one issue I have with the app, you can't control the thermostat using an android device but only apple devices. I highly recommend this product for someone that wants a Wi-Fi enabled thermostat but doesn't necessarily need a Smart Thermostat.
Date published: 2016-01-19
Rated 5 out of 5 by from Love It! Easy to install, easy to use. I can control my house temperature from anywhere using the smart phone app.
Date published: 2014-12-08
Rated 5 out of 5 by from Great like its suppose to.. I bought this back in 2012 when it was 3M-50 Radio thermostat for $99.. I did have to connect a " C " wire called a common wire but that was easy, just used existing wire that was not being used and connected it for "C" wire for power for wifi connectivity..I have had 3M-50 for 3yrs now and have had no problems with it even when I had to replace wireless router...Great product and I did not have to install another thermostat downstair since now I can use my IPhone6 ( had IPhone 3GS when I first installed and setup)downstairs and anywhere else.... FYI: I did have to unhide my wifi signal name when I first setup thermostat and then I re hide signal afterwards and you can setup under WEP or WPA or WPA2 personal.. Mark H.. Austin,TX 4.12.15
Date published: 2015-04-12
Rated 4 out of 5 by from Good overall experience Arrived on-time and easy to install. Made two calls to manufacturer tech support and received bare minimum advice, though.
Date published: 2015-03-10
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