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The short answer
- A smart AC controller copies your AC remote's infrared signals, so it adds app control to window, portable and mini split units with no wiring.
- Cielo Breez Max is our top pick for most apartments, with a touch display and support for window, portable and mini-split units.
- Sensibo Air Pro is the pick for smart-home fans thanks to Climate React and a built-in air quality sensor.
- Cielo Breez Lite is the budget pick when you just want schedules and app control.
Our picks
Cielo Breez Max
An IR smart AC controller with on-device touch controls, scheduling, geofencing and groups for window, portable and mini-split units.
Good
- Works with mini-split, window and portable units with an IR remote
- Touch controls on the device itself
- 7-day schedules, geofencing and groups
Watch for
- Needs line of sight to the AC
- Your AC must have an infrared remote
Sensibo Air Pro
A smart AC controller with a built-in air quality sensor and Climate React automations that respond to temperature and humidity.
Good
- Climate React automations
- Built-in air quality sensor
- Works with window, split, portable and other remote-controlled units
Watch for
- Uses 2.4GHz Wi-Fi only
- Some advanced features may need a Sensibo plan
Cielo Breez Lite
Cielo's simpler controller for renters who just want app control, schedules and comfort settings without a display.
Good
- Lower price than the Max
- App control and scheduling
- No wiring or tools
Watch for
- Fewer features than the Breez Max
- No on-device touch controls
| Product | Best for | How it installs |
|---|---|---|
| Cielo Breez Max | Best overall | Sits on a shelf or sticks to the wall in line of sight of your AC; no wiring. |
| Sensibo Air Pro | Best for smart-home fans | Plugs into USB power; place it where it can see the AC's receiver. |
| Cielo Breez Lite | Best budget pick | Small enough to sit next to the window unit it controls. |
An AC remote that lives on Wi-Fi is the easiest climate upgrade a renter can make. The best smart AC controller for most renters is the Cielo Breez Max, because it works with window, portable and mini split units that have an infrared remote, and it needs no wiring or landlord approval. If your apartment has a remote-controlled AC, you can make it smart in about ten minutes.
We like smart AC controllers because they solve a problem renters actually have: the thermostat belongs to the building, but the AC remote is in your hand. In this guide I’ll explain how they work, how to check compatibility and which three we’d buy. If you can control your thermostat, read can I install a smart thermostat in my apartment first.
What a smart AC controller does
This kind of controller learns your AC remote’s infrared signals and sends them for you, from your phone, a schedule or a voice assistant. Think of the controller as a Wi-Fi remote that never gets lost in the couch.
With one in place you can:
- Turn the AC on from your phone before you get home.
- Set weekday and weekend schedules.
- Use geofencing to switch it off when everyone leaves.
- Ask a voice assistant to change the temperature.
Will it work with your AC?
These devices work with almost any air conditioner that has an infrared remote, including window units, portable ACs and ductless mini splits. Here’s a quick compatibility check:
| Your AC | Works? | Note |
|---|---|---|
| Window AC with a remote | Yes | Most common renter setup |
| Portable AC with a remote | Yes | Keep the controller in line of sight |
| Ductless mini split | Yes | Check the remote is infrared, not wired |
| Window AC with dials only | No | Use a smart plug only if the AC restarts after power loss |
| Central air with a wall thermostat | No | That needs a smart thermostat |
The best smart AC controllers for renters
Pick the Cielo Breez Max for the best all-round control, the Sensibo Air Pro for automations and air quality, and the Cielo Breez Lite to save money.
| Cielo Breez Max | Sensibo Air Pro | Cielo Breez Lite | |
|---|---|---|---|
| Best for | Most apartments | Smart-home automations | Tight budgets |
| AC types | Mini split, window, portable | Window, split, portable and more | Remote-controlled units |
| Standout feature | On-device touch controls | Climate React, air quality sensor | Simple app control |
| Wiring | None | None | None |
Cielo Breez Max: best overall
The Cielo Breez Max is the controller we’d put in most apartments. Cielo lists it for mini-split, window and portable units that come with an IR remote. You get 7-day schedules, geofencing and groups for controlling more than one unit, plus touch controls on the device for roommates who don’t want the app.
Sensibo Air Pro: best for smart-home fans
The Sensibo Air Pro is the one to choose if you love automations. Its Climate React feature turns the AC on when the room crosses a temperature you set, and the built-in sensor tracks temperature, humidity and air quality. Sensibo’s spec sheet lists window, split, portable and other remote-controlled units, and it connects over 2.4GHz Wi-Fi.
Cielo Breez Lite: best budget pick
The Cielo Breez Lite covers the basics for less: app control, schedules and no wiring. If you just want the AC cooling the bedroom before you get home, this mini split smart controller alternative is all you need.
Setting it up in an apartment
Place the controller where it can see the AC’s infrared receiver, connect it to 2.4GHz Wi-Fi, then pick your AC model in the app. Our setup checklist:
- Find the receiver on your AC (usually a small dark window on the front panel).
- Put the controller on a shelf or wall within line of sight, a few feet away.
- Connect it to your 2.4GHz Wi-Fi network.
- Select your AC brand and test on, off and temperature changes.
- Add a schedule and turn on geofencing.
Use removable adhesive strips if you mount it on the wall, and peel them slowly at move-out. Our smart home for renters guide has more no-damage mounting tips.
What to look for before you buy
The right controller depends on your remote, your Wi-Fi and the smart-home app you already use. These are the features we compare:
- Remote type: the controller copies an infrared remote, so a wired wall remote on a mini split won’t work.
- Sensors: a temperature and humidity sensor lets the device react to the room, not just a clock. Sticky summers are where humidity triggers earn their keep.
- Schedules and geofencing: these do the most to lower your energy bill, because the AC stops cooling an empty apartment.
- Voice and app support: check the maker’s current list for Alexa, Google Home and Apple HomeKit before you buy.
- Wi-Fi band: most controllers need 2.4GHz Wi-Fi, so make sure your router broadcasts it.
Landlord-owned mini splits and shared units
A controller is usually fine on a landlord-owned mini split, because it only sends the same infrared commands as the remote. It doesn’t open the unit, change settings in the wall or touch wiring. We’d still mention it to your landlord if the unit serves more than one apartment, and we’d keep the original remote in a drawer so it’s there at move-out.
If your AC has no remote at all, a controller can’t help. In that case look at a smart plug for a fan instead; our Matter smart plug guide covers plugs that handle schedules well.
Do you need a subscription?
Core features like app control and an AC schedule work without a subscription on our picks, though some brands sell plans for extra features. Check the current plan details on the maker’s site before you buy, since they change over time.
Our verdict
The Cielo Breez Max is the best smart AC controller for most renters, the Sensibo Air Pro is best for automations, and the Cielo Breez Lite is best on a budget. All three move with you, need no wiring and leave the apartment exactly as you found it. If you also want voice control, our Alexa vs Google Home comparison helps you choose an assistant.
Questions renters ask
What does a smart AC controller do?
It learns your AC remote's infrared signals and sends them from a small Wi-Fi device, so you can control the AC from an app, set schedules and run automations.
Do smart AC controllers work with mini splits?
Yes, as long as the mini split uses an infrared remote. The Cielo Breez Max and Sensibo Air Pro both list mini-split support.
Do I need landlord permission for a smart AC controller?
Usually not, because it doesn't touch any wiring. It sits near the AC and sends the same signals as the remote.
Will a smart AC controller work with my AC?
If your AC has an infrared remote, it most likely will. Units with only physical buttons or dials can't be controlled this way.
Does a smart AC controller save energy?
It can, because schedules and geofencing turn the AC off when nobody is home instead of running it all day.
Why you can trust this guide
- Products are checked against manufacturer specifications, installation manuals and long-term owner reports.
- Each pick is scored on our renter criteria: install footprint, reversibility, portability, subscription costs and ecosystem support.
- We never accept payment for placement. Affiliate commissions do not affect rankings.
Last reviewed . Read our research process and editorial policy, or report an error.
Sources
RenterSmartHome Editorial Team
Research & editorial
We research smart home gear specifically for apartments and rentals: how it installs, whether it is reversible, what it needs from your landlord, and whether it moves with you. Every guide follows our published research process and editorial policy.
