Aqara Valve Controller T1 Review

Design and Installation

• Takes four AA batteries
• Operates lever or butterfly valves

Our homes are full of manual valves, which can be used to switch off the incoming water or gas supplies, or even isolate part of your heating system. Normally, a system that can control these types of valves needs specialist fitting. 

I ran the Geo Waterlock system for years, which combined water leak detectors with a professionally-fitted shut-off valve fitted on the incoming water supply, but the system has been discontinued and no longer works.

The Aqara Valve Controller T1 offers something more flexible that can be retrofitted to any type of manual valve: lever or butterfly. As it’s battery powered (via four AA batteries), it also means that you can install it practically anywhere, bar outside, as the T1 is, ironically, not waterproof itself.

Connected via Zigbee, the Aqara Valve Controller T1 needs a compatible Aqara hub. I used the new M200 hub, which has the advantage that I can bridge the device to a Matter-compatible-system (Homey and Apple Home in my case) for wider automations.

It’s worth getting it connected to the hub and app before you install it, so that you can confirm that the Aqara Valve Controller T1 works before installation. Then, I recommend moving the valve near where it will go so that you can test whether it will work in-situ.

I decided to install my T1 on my underfloor heating system. When this was installed, the plumber was a bit clueless, so they set the smart heating system up to turn the underfloor pump on and off, rather than it controlling a two-port zone valve to isolate the underfloor from the rest of the system.

As it stood, the underfloor heating system would get a little warm every time a radiator was turned on in the rest of the house, which isn’t ideal. By using the Aqara Valve Controller T1 on the incoming valve, I figured that I could isolate the system when the underfloor heating was turned off.

Aqara also sells water-leak and gas detectors, which could be used in combination with the T1 to shut off the incoming water and gas supplies in the event of an issue. Given that water damage can cause serious problems, an automated system can really protect your home and possessions.

The Aqara Valve Controller T1 is a very simple device. It’s basically a battery-powered motor that turns a lever in one direction only, moving 90-degrees only. That suits all shut-off valves, but it does mean that the Aqara Valve Controller T1 has to be installed the correct way for the valve.

In my underfloor heating system, the valve I wanted to control is mounted vertically, and the Aqara Valve Controller T1 had to be fitted upside down.

It’s also quite a bulky device, and I couldn’t get it in place to start off with, as the plaster got in the way. Fortunately, the underfloor system is hidden behind a panel where the plaster can’t be seen. As some plaster had been chipped off to get the pipes in, I could remove a bit more to get the valve fitted. 

I then had to use the adjustable collar to get a tight fit, so that the Aqara Valve Controller T1 would operate the valve without moving itself. 

It’s a snug fit, and I can’t reach the button to operate the Aqara Valve Controller T1 manually, or reach the override switch that lets the valve be operated by hand in the event of a failure. Given that the Aqara Valve Controller T1 isn’t reachable without taking a panel off, that’s not such an issue for me, and I accept that in the event of an error or to replace batteries, I’ll end up having to remove the valve from the pipe.

Features and Performance

• Operates smoothly
• Works reliably over Matter

It’s possible to operate the Aqara Valve Controller T1 directly from the Aqara app. If you’re pairing it with other Aqara devices, then you can most likely run all of the automation from there, such as turning off the valve when water is detected by a waterleak detector. 

The Aqara Valve Controller T1 is a very simple device: it can be turned on or off, and that is it. Although, the Aqara app does also offer a timer mode, which you could use to automatically turn on a sprinkler system, assuming that the compatible valve is installed inside.

In my case, I needed to get the Aqara Valve Controller T1 to work with my Tado X heating system, so I added my Aqara hub to Apple Home using Matter, which brought in all of my connected devices.

It was then a case of getting the right automation to work. This actually proved a bit trickier than I’d hoped for, as the Tado X system kept changing the triggers it offered.

My Wireless Temperature Sensor X in the kitchen, for example, only let me use temperature as a trigger (if the temperature rose above or fell below a target); the same device, but in my bedroom, offered me on/off triggers (if the heating is set to on or the heating is set to off). I needed the latter, so I switched the Wireless Temperature Sensor X devices around in my home; later, I found that what was the kitchen sensor changed to offer the on/off triggers. I can’t work out why the triggers change or why they’re different, but I did get to the point with the right options.

At one point, I tried to add the Tado X Wireless Temperature Sensor X to my Aqara system, but it just refused to connect. Interestingly, Homey offers more granular control than Apple Home, so is possibly a better long-term choice.

Anyway, I digress. I changed my Tado system in the kitchen so that the schedule either had the heating set to Off or a target temperature. This lets me turn the Aqara Valve Controller T1 on when the heating is turned on, and off when the heating goes off. And, this rule works with manual control, too.

Now, when my Tado X system in the kitchen turns on, there’s a gentle whirr as the Aqara Valve Controller T1 kicks in, opening the valve to let water through; when the heating turns back off, the valve shuts down.

The only slight disadvantage is that while the valve is open, hot water can go around the underfloor heating system. For example, if the heating is set to 18°C for two hours, but reaches the desired temperature after an hour, the Tado X system in the kitchen stops calling for heat and shuts the pump down. But if a radiator turns on elsewhere in the house, some of that hot water will be pumped around the underfloor system, which can make the kitchen overshoot its target temperature by a little.

Overall, being able to isolate my kitchen from the rest of the heating system is better, and I’ve found that the Aqara Valve Controller T1 is very reliable and the automation has worked without fail every time: Matter and its direct control proves far more reliable than either HomeKit or cloud control.

I’ve tweaked my heating, too. Due to the way that underfloor works (low temperature over a large surface area), I find that setting the heating to come on at 5am for three hours, get the kitchen to a nice temperature that mostly holds during the day, and I only need a boost on a very cold day.

A ‘better’ solution would be to use an Aqara smart relay connected to the Tado Wireless Receiver X would be better. The relay would monitor when the heating was calling for heat or not, controlling the Aqara Valve Controller T1 with a bit more precision. It’ s a plan for the future but would need a bit more wiring and work.

Battery life is rated up to two years, assuming one on/off cycle of the valve per day. In my house, I average more of that, but only need the T1 while the weather is cold, so I should easily get at least a year out of a set of batteries.

Should you buy it?