Pros / The CT-80 has geofencing, which uses your smartphone's location to adjust your home's temperature when you come and go.

Cons / This wireless thermostat only has a one-year warranty.

 Verdict / Affordability, ease of use, energy efficiency and reliable temperature control make the Radio Thermostat CT-80 a good choice for people who want to install their own thermostat and save money on utility bills.

Radio Thermostat isn't a well-known name in programmable thermostat manufacturing, but its CT-80 is a solid entry in our thermostat reviews because it gives you total control of your environment over a Wi-Fi network. The thermostat doesn't have very many sensors, but it has several heating and cooling stages and a user-friendly touchscreen that makes it easy to program. However, the Radio Thermostat CT-80's warranty isn't very long compared to the best programmable thermostats.

The CT-80 is an affordable thermostat with seven-day programming and drag-and-drop mobile app controls, which is nice if you have a sporadic schedule. The Wi-Fi thermostat has a basic auto-schedule feature you can use to quickly save your preferences in the mobile app. When you need to override a schedule, you can override an entire week or just one day with the touch of single button, and you don't have to reprogram your settings after.

The Radio Thermostat CT-80 has a humidity sensor, and it sends you equipment alerts so you know when it's time to change your air filter and if there are any system malfunctions. Unlike most of the other thermostats in our review, the CT-80 accesses weather conditions to improve its efficiency, and it can display this information on the screen for your reference.

The CT-80 is one the best thermostats because it supports adjustable geofencing via the mobile app. Geofencing uses your smartphone's location data to activate or deactivate your home's HVAC system. This means that it can detect if you are coming or going and raises or lowers your home's temperature accordingly. This conserves energy and translates into savings on utility bills. Although this thermostat doesn’t have smart technology, it makes conserving energy easy by letting you switch into Save Energy mode at any time with the simple push of a button.

The thermostat has a simple retro-style touch screen that is easy to navigate through but looks dated. In fact, it looks like a Casio watch from the ‘80s with its block-letter display and lack of color and graphics. It also makes a beeping sound similar to a Casio watch when you press the buttons.

You program the settings by answering questions displayed on the screen such as, "When you're away, what temperature do you want in the house?" and "What temperature do you like at night?" This makes for easy set up. When we installed the thermostat, we had problems connecting to Wi-Fi, but after several minutes, we were finally able to connect and control the phone's functions from a smartphone. This Wi-Fi thermostat is compatible with Z-Wave and ZigBee radio frequencies, so it works with most standard home automation systems – you may need to purchase extra equipment to enable these functions.

You can install the thermostat yourself. The manual gives an extensive walkthrough of the installation and programming. The website also houses installation guides and compatibility checkers so you can verify whether or not the CT-80 works with your system.

Radio Thermostat only offers a one-year warranty on the CT-80, while most other manufacturers offer two-, three- or five-year warranties. Radio Thermostat support is available via email, phone and live chat. The company does not have an online forum.

Radio Thermostat CT-80 B Visit Site
  • Heating Stages
  • Cooling Stages
  • Temperature Swing
  • Ease of Use
  • Ease of Installation
  • Warranty
  1. This is the number of heating stages a thermostat supports.
    Higher is Better.
  2. 7  Radio Thermostat CT-80
    3.0 Stages
  3. 3.0 Stages
  4. 4.0 Stages
  5. 3.0 Stages
  6. Category Average
    3.2 Stages


The CT-80 can help you cut back on energy costs. It works with multistage systems and has one-touch override if you want to set a new schedule. The geofencing capabilities help conserve energy and save money on utility bills. This thermostat has detailed and thorough installation instructions, as well as great customer support, so you can set it up yourself without much trouble. It doesn't have a very long warranty, but overall, the CT-80 is a good choice if you are looking for an affordable thermostat with energy saving features.

Radio Thermostat CT-80 B Visit Site