
For anyone letting a holiday home and paying the bills. The Aqara G3 camera-hub controls the air conditioner over infrared and switches it off when the guest opens one of the four windows being watched; in winter the two E1 thermostatic heads close the radiators in the same situation. It is all set up in the Aqara Home app, with no electrical work.
What it does
- When one of the four windows with a T1 sensor is left open, the G3 sends the air conditioner the off command by infrared, just as the remote would.
- In winter the same opening closes the two E1 thermostatic heads on the radiators; when the window is shut they go back to the set temperature.
- The E1 heads let you set a maximum temperature and operating hours, so the guest does not leave the radiators flat out all day.
- The G3 also works as a 2K camera for the room it is installed in, recording to the microSD included: to be used only when the house is empty or in areas the guests do not use.
- In the app you see the state of the windows and the radiators and get a notification if a window is left open for a long time.

How it is installed
What's in the kit

| Qty | Item | Unit price | Subtotal |
|---|---|---|---|
| 1 | Aqara G3 2K camera-hub with IRCamera / hub | 118,80 € | 118,80 € |
| 4 | Aqara T1 door/window sensorOpening sensor | 23,94 € | 95,76 € |
| 2 | Aqara E1 thermostatic head (AA)Thermostat / climate | 59,73 € | 119,46 € |
| 1 | SanDisk High Endurance microSD 64GBAccessory: storage · one per camera | 33,99 € | 33,99 € |
| Kit total | 368,01 € |
Prices taken from Amazon.it on 22/09/2026: they can change, and the price Amazon shows at the time of purchase is the one that applies.
Add the whole kit to your Amazon basket4 items, 8 pieces · optional extras are added from the individual linksDelivery, returns and warranty: Amazon shows these when you buy.
Before you order
Do you need a hub?
Yes, and it is the G3 camera itself: as well as filming, it acts as the hub for the window sensors and the thermostatic heads and sends the infrared commands to the air conditioner. Nothing else needs buying, the house Wi-Fi is enough.
Does it work with any air conditioner?
It works with air conditioners controlled by an infrared remote, which covers the vast majority of split units. The G3 has a list of brands and, if your model is missing, it can learn the buttons from the original remote. It does not work with units controlled only by an app or a wired controller.
Does it work with Alexa, Google Home or Apple Home?
Automations with the windows are created in the Aqara Home app, which is where the whole kit is managed. Aqara also supports Apple Home and other assistants for various devices, where the manufacturer says so; for what is intended here the Aqara app is enough.
Do you need an electrician?
No. There is no 230V wiring: the G3 plugs into a socket, the sensors and the thermostatic heads run on batteries. You only need to check that the radiator valves will take a thermostatic head and to fit the right adapter.
What happens if there is no internet?
Automations between the Aqara devices paired to the G3 can run locally on the hub, so windows, thermostatic heads and the air conditioner carry on talking to each other. Without the line you get no notifications and cannot control anything remotely until the connection is back.
Are batteries included?
The T1 sensors and the E1 thermostatic heads run on batteries; the E1 units use AA cells. Check each product's Amazon listing to see whether the first set is in the box. The G3, on the other hand, runs off the mains.
Can I add more rooms?
Yes: you can pair more window sensors and more E1 heads to the G3. A second air conditioner in another room needs its own infrared control in that room, because infrared does not go through walls. Get in touch through the contact page.
What if a product is out of stock on Amazon?
An item can sell out or change version. Get in touch through the contact page quoting the kit code: we will point you to an alternative that works with the other devices and with the same app, so you keep a combination we have checked and you do not have to go back over anything yourself.
Why buy on Amazon?
Purchase, payment, delivery, returns and warranty are handled by Amazon, as with any other order: delivery times, returns and warranty are shown on Amazon when you buy. The kit is our own work: we picked parts that work together, plus the accessories needed to fit them.
Notes
Not included
- Air conditioner and radiators
- Special adapters for non-standard radiator valves, if not supplied in the box
- A Wi-Fi router and an internet connection
- Batteries, if not supplied in the boxes
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