2 Pack SONOFF Zigbee Thermostatic Radiator Valve, TRVZB, Add-On Smart Radiator Valve For Smart Home Control, Easy Installation, Save Heating Costs, Works With Alexa, Google Home

I've been using SONOFF products for a number of years now and in operation they have proved themselves to be rugged and reliable in all sorts of applications. I chose their TRV ZB valves to enable me to have an individual heating zone for each radiator. To achieve this I use the Sonoff iHost for local control and various types of Sonoff Wi-Fi switches to call for heat from the boiler (switch the boiler on or off). In essence each TRV ZB acts as a 'Master' and has a 'Slave' Sonoff Wi-Fi Switch associated with it. When the TRV ZB goes to 'Heating' status it causes its associated slave switch to fire up the boiler. The switches that I use as 'Slaves' have clean volt free contacts model 4CH PRO. It will take some time with a simple thermometer to set up these TRV ZBs to give the desired room comfort temperature level. The effort is worth it though as since installing my system I have noticed much better comfort- not too hot or too cold and seen a reduction in my heating system gas consumption and of course once set up the operation is fully automatic. The TRV ZBs come with several valve adapters but I had a couple of valves (Myson) that adapters were not available for so those valves had to be changed to a type that will take the TRV ZB. The valves are battery (3x AA) operated and very quiet in operation. They are very controllable- I'm using the SONOFF iHost with standard firmware in every device. In using these devices I've identified features that I would find desirable in future developments for the product and Sonoff/ eWelink actually encourage and listen to feedback from customers via the eWelink forum. In summary this is a very competitvly priced smart TRV that will enable DIY ers without deep coding skills to build an automated central heating system.

Purchased to replace very old manual ones because they were difficult to get to behind furniture. Have Alexa and Hive heating and these connected really well. Took a bit of time to fit, my fault as I chose the wrong adaptor piece (and because they were awkward to get at). Once I realised and got the correct one which was similar, I had no problems. They clicked onto the valve and you can hear a quiet whirring noise as it sets itself up and turns on or off. Set my routines or valve temperature in Alexa, much easier than moving furniture to alter the settings for the old manual ones.

These were bought on the recommendation from my son, he uses them at home and he says they work really well. We have only just started to fit them, as we need a plumber to sort a couple of our radiators that have a different fittings to them.

Reliable, cheap and works great. Would not use it in bedrooms due to audible operation on open/close. Get Aqara w600 (more than 2x price) but exceptionally quiet. Stick these cheap Sonoff in all other rooms to save £££ and you will be happy.

I've used Sonoff hardware for a number of years now and it has been very reliable. I had no problem getting the valves up and running. One thing to be aware of is that on first installation it prompts you to uprade the firmware to the latest version. It takes about 40 minutes for the upgrade to complete. I was a bit concerned that it seemed to be taking a long time but a quick internet search while I was waiting confirmed that this time is about normal. It completed the upgrade and everything worked perfectly afterwards. The eWeLink software is pretty good as phone apps go although I normally prefer a PC app. In this case some of the configuration options in the PC app are hidden behind a paywall so the phone app wins because everything is freely available. Time will tell how reliable they are but at the moment it's five stars.

I’m obsessed with these radiator valves!! It took me just a minute to replace the old ones as luckily didn’t need to use any of the adaptors. Very easy to setup. I have other SONOFF temperature sensors in the rooms and the valve temperatures are accurate. I got 10 of these valves around the house and I have connected them directly to my home assistant to set some automations. At first I had to update the firmware which took no time. Very happy so far with my purchase and can’t wait for winter now!

So far so good, have to say I really like these & easy Alexa intergration. I live in a 2 bedroom flat and it's always annnoyed me that to put the central heating on I'm heating the whole flat despite the fact that I spend most of my mornings in my office / bedroom 2. I had the old style TRVs where you can manually turn them to turn off but a pain to keep remembering and doing. I bought a two pack and Installation took 10 minutes for the first one and 2 minutes for the second one as I knew what I was doing by now. I didn't need to use any of the 6 or so adapters that came with them, they screwed directly onto my radiator. As soon as it was on I pressed the top button, the display said "Ad." It whirred within and all was good. They take 3 x AA batteries and I can't comment on the lifespan as yet but very easy to replace when need be. Setup via the ewelink app. I already have a pair of sonoff curtain closers so have a sonoff hub for that & was aware of the little niggle in that you must switch off your 5GHz channel on your router for the devices to be found. Annoying, once paired you can switch the 5GHz back on. When ready, turn the button to off, Then hold it for 3 seconds and it goes into pairing mode. It does take around 30 - 60 seconds until it finds the device but once found it adds it straightaway and all works. So I now generally control via Alexa, turn the "Lounge Radiator to 25" but have a schedule set up to turn them both off at 12am and then they won't turn back on until I say so. So now when I get up, my heating kicks in 30 minutes before in the hall, bathroom & bedroom. Then when getting dressed I tell Alexa to turn the Cave radiator on. Love it. Will buy another two shortly.

I have a mix of Hive and Sonoff TRVs. Personally I prefer the Sonoffs as they are less fiddly to control via Home Assistant than the Hive equivalents and take an extra battery (3 vs 2 in the Hives) and seem to have much more reliable and consistent battery life. For anyone struggling with connectivity…add some zigbee repeaters to your network (even a zigbee smart switch will act in this capacity). Makes a big difference. I haven’t had one of these drop off the network yet. For anyone not convinced by temperature readings…same as with the Hive units, the onboard temperature is pretty useless. This is inevitable when you have a thermometer attached to a heat source. They tend to report the room is up to temperature much quicker than it actually is. I use a zigbee thermometer in each room that has a TRV and ignore the temperature reported by the TRV. This gives a far more accurate reading of room temperature. I’m seriously considering selling off my Hive units and replacing with these.

Working great so far. Was worried that the batteries would run out quickly, but two months in the batteries are still almost full

Was ist mir wichtig? Schlicht und wartungsarm sollen die Radiatoren sein. Warum Sonoff? Ich habe mit Tado in meiner Mietwohnung angefangen unsere Heizungskörper smart zu machen, jedoch hat mich hier die Preispolitik bei Tado gestört. Jetzt mache ich im Eigenheim alles mit HomeAssistant selber und hier suche ich nun Austausch für die Tados, die immer mehr Probleme machen. Gestört hat mich hier der Batterieverbrauch. Die Akkus waren nach 2 Monaten leer und man (mit 6 Radiatoren) fast wöchentlich am Akku Aufladen. Des Weiteren gab es Probleme mit den Thermostaten. Ein Heizungskörper Thermostat direkt am Heizkörper ist nicht das Wahre. Also habe ich externe Temperatursensoren gekauft und in HomeAssistant eingebunden. Hier war ich mit sonoff nun schon mehrere Monate echt Happy. Einfache Einrichtung und Akkulaufzeit top! Jetzt gingen mir über Monate die Tados mehr und mehr auf den Keks und ich wollte Ersatz. Da stellt Sonoff seine eigenen vor und ich hab direkt mal zwei im Angebot gekauft, um es zu testen. Die Einrichtung: Die Einrichtung war etwas knifflig, weil der Pairing-Modus schlecht beschrieben ist. Die Anleitung ist sehr klein und unübersichtlich. Hier kann ich das YouTube-Video empfehlen: "SONOFF Zigbee Thermostatic Radiator Valve Installation Guide" Der Pairingmodus: Installiere den Radiator, stelle die Temperatur runter auf "off", drücke den Drehknopf für 3 Sekunden. Er wird sofort eingebunden und kann konfiguriert werden. Vergleich zu Tado: Ich vergleiche ihn mit meinen Tados, da ich finde, dass sie das non plus Ultra sind/waren. Sehr moderne, chice und minimalistische Thermostate. Die Sonoff finde ich jedoch auch schlicht, nur etwas klobiger, jedoch noch voll ok. Dafür eine bessere Akkubilanz! Was noch so cool ist: Standardmäßig ist die LED Anzeige deaktiviert, sofern man Änderungen per App vornimmt. Was ich super finde! (Stromsparend) Nur wenn ich selbst dran drehe, soll die Anzeige an gehen. Das Setup lässt sich jedoch auch anpassen. Fazit: Wenn man das Pairing geschafft hat und weiß, wie es geht, sind es super Radiatoren, welche eine stabile Verbindung zur Bridge haben, wenig Strom verbrauchen, und durch die große Anzahl an Akkus, lange halten. Außerdem haben sie ein schlichtes unauffälliges Design. Klare Kaufempfehlung!

Compré este cabezal termostático inteligente SONOFF para controlar mejor la temperatura de casa de forma remota y programada. 🔹 Aspectos positivos: ✔ Control sencillo: Se conecta fácilmente con Alexa y Google Home, permitiendo manejar la temperatura con comandos de voz. ✔ Pantalla LED clara: La lectura de la temperatura y los ajustes se hacen de forma muy intuitiva. ✔ Buena respuesta: La regulación de la temperatura es bastante precisa una vez configurado correctamente. 🔹 Aspectos a mejorar: ✔ Requiere Zigbee Hub: Sin un hub Zigbee 3.0 no funciona, lo que supone un gasto adicional si no lo tienes. ✔ Compatibilidad limitada: No se adapta bien a todas las válvulas de radiador, en algunos casos se necesita un adaptador adicional que no siempre viene incluido. En resumen, un buen producto para automatizar la calefacción, pero deberían mejorar la compatibilidad con más tipos de válvulas para facilitar la instalación.

Ik gebruik deze in combinatie met home assistant om een zone regeling in het huis toe te passen. Ze zijn inmiddels 3 weken in gebruik en ik ben erg te vreden, alleen was het wel noodzakelijk om van zha naar zibgee2mqtt over te stappen om updates te krijgen (OTA) en om de externe thermometer te kunnen koppelen. Since ik ben overgestapt werken ze alle 8 als een zonnetje!

Has worked without faults.