Shelly H&T Gen3 White | Wi-Fi & Bluetooth Smart Temperature & Humidity Sensor with Remote App Control | Smart Scenes | LCD Display

I am a software developer. I spent a lot of time reviewing different devices, interfaces and their specifications. I wrote software to manage this device, including RPC, Bluetooth and MQTT. I am also very experienced in the dynamics of environmental monitoring for residential and commercial buildings. In my opinion this is an excellent humidity and temperature monitor at a low cost for home automation. The interfaces are well documented, easy to work with and there are numerous open-source implementations and libraries available. If you are a non-developer or a home automation user, this device will monitor humidity and temperature and perform well. I have read comments regarding long times to report changes. Temperature and humidity do not change rapidly in normal residential or commercial environments. If you require fast change detection, you are designing for a problem this device is not intended for. This device reports on wakeup every six minutes. The reason is to save battery life. That is sufficient in normal environments. If you require fast response times, select a different type of device that is plugged into a power source and reports continuously. The device will need to support rapid temperature and humidity changes and those types of instruments are much more expensive. The big issue is accuracy when detecting changes. It does no good to use a cheap device that reports every 5 seconds if the changes are only +-20% accurate. Accuracy requires either time or money.

It appears that this unit won't maintain a stable connection with my network. The temp displays in Celsius.... The time only displays if it's connected to the internet, or synced through the app, not sure. I think the temp. and humidity are inaccurate on mine. Maybe the offset adjustments can fix that, but I didn't get that far to test it. I didn't want to use the Shelly app, but in an attempt to salvage anything good of this unit (and at least give Shelly benefit of the doubt and use this how it's intended to be used), I installed the app and ran into issues. You must have an active internet connection to sync. this device with the Shelly app. You have to create an account too. Being unwilling to connect the app to the internet, I gave up. The goal was to run this through Home Assistant, but it only reports the temp/humidity initially when it first connects and then loses connection. Maybe related to network issue, dunno. Shelly, your other products are good, work over wifi, and don't require internet and an app. What happened to this one?

it consume very little energy, works fine.

Pretty accurate hygrometer with great e-paper (e-ink?) display. Display is large enough to read everything clearly without my glasses and set up was fairly easy. Bought this unit because of the flexibility to take batteries for power or use USB cable to power the unit as we didn’t want to replace or recharge batteries frequently, in addition to good display. Knocked off 1 star because USB cable needs to be removed every time the back cover needs to be removed to sync. Sync/reset button is under the battery cover, and the cover cannot be removed without unplugging USB cable. (Only required during initial setup) Shouldn’t be a problem for those who choose batteries. Specifically bought this unit to hook it up with Home Assistant with Shelly plugin and it did not disappoint. Picked it up fine and reading well over WiFi. The price of this unit is about the same as other WiFi Hygrometers on the market, but can be expensive if we wanted this throughout the house. But for the reliability so far of Shelly products, we’d definitely consider this unit again.

The e-ink display on this thing is great. If your primary use case is to have a thermometer/hygrometer/clock to look at, then this device is a great pickup. If you also want to have some historical data for a device like this, you will get it here. It can use the app itself, the “Shelly cloud” or easily connect to Home Assistant (though it does require a small manual step of telling it to push its data to HA”. Soon, this is supposedly supposed to get Matter support as well. Finally, I believe this device makes too strong of a compromise to save battery power. The device will push data at a maximum rate of every 5 minutes, but only if the temperature or humidity change by some threshold. If the temp/humidity does not change by enough, then it just will not push updates. The thresholds are 1 deg F and 2% RH. If you are wanting to use this to drive an adhoc thermostat, it is just not great unless your acceptable hysteresis is like 3-5 deg F. This device could easily become a 5+ star device if the update rate was configurable down to 10-30 seconds range. It will also be a great sign if this device does in fact get the Matter upgrade that is being teased/promised at this time. Update: I’m now using this device in a thermostat automation and it works great. I prefer devices with a zigbee or thread radio, but this thing is rock solid and works well with my rechargeable NiMH AA batteries.

There are not many plug-in/hardwire smart thermostats available. Happy to find this one. I needed a plug-in thermostat for a crawlspace that is hard to access to change batteries all the time. Setup was a bit finicky. Eventually I just got it on the wifi by connecting to its AP and setting up through the browser. Make sure if you have the same SSID for your 2.4 and 5 Ghz networks, that you create a rule in your router to force it on the 2.4 band and deny it on the 5 band. I also got it added to smartthings so I can create some alerts. Exactly what I needed!

✨ Sensor Shelly H&T Gen 3: La Evolución de la Comodidad Domótica ✨ El Shelly H&T Gen 3 no es solo una actualización, es un salto generacional que redefine lo que un sensor de temperatura y humedad puede ofrecer. Shelly ha escuchado a su comunidad y ha entregado un dispositivo imprescindible para cualquier entusiasta de la domótica que busque precisión, autonomía y una integración perfecta. ¡Es la estrella indiscutible de su categoría! 🚀 Rendimiento y Novedades (5/5) • Chip Shelly de Nueva Generación: Equipado con el nuevo chip de Shelly y 8MB de memoria, el Gen 3 es notablemente más rápido y receptivo que sus predecesores. La velocidad de las notificaciones y la actualización de la información es inmediata, garantizando que siempre estés al tanto de las condiciones de tu hogar. • Pantalla E-Ink Mejorada: La inclusión de una pantalla de papel electrónico (E-Ink) con reloj incorporado es un acierto brillante. Ofrece una lectura clara y nítida de la temperatura y humedad con un consumo de energía mínimo, haciendo que la información esté disponible de un vistazo sin sacrificar la vida útil de la batería. • Conectividad Híbrida: Mantiene su excelente conectividad Wi-Fi sin necesidad de hub, pero ahora añade Bluetooth para una inclusión aún más rápida y la posibilidad de utilizarlo como puerta de enlace, ampliando sus capacidades de automatización. 🔋 Autonomía y Alimentación (5/5) • Duración de Batería Excepcional: Su diseño de bajo consumo le permite operar con 4 pilas AA hasta por un año (o incluso más, dependiendo de la configuración), liberándote de la necesidad constante de cambiar baterías. • Alimentación USB-C: La adición de una ranura USB Tipo-C no solo facilita una conexión más rápida para la configuración y firmware updates, sino que también ofrece la opción de alimentación constante (5V) si lo prefieres. 🏠 Integración y Versatilidad (5/5) • Ecosistema Shelly y Automatización: El H&T Gen 3 brilla cuando se integra con otros dispositivos Shelly. Puedes configurar automatizaciones de clima complejas (por ejemplo, encender el Shelly TRV o un aire acondicionado a través de un Shelly Plug) basándose en las lecturas de temperatura o humedad, creando un ambiente siempre confortable. • Compatibilidad Universal: Funciona a la perfección con las principales plataformas de domótica como Google Assistant, Alexa y Home Assistant, garantizando que se adapte sin problemas a tu configuración actual. • Almacenamiento de Datos Gratuito: Ofrece hasta 1 año de almacenamiento de datos gratuito en la nube de Shelly, lo que te permite analizar las tendencias climáticas de tu hogar para tomar decisiones más inteligentes sobre calefacción, refrigeración y ventilación. 📝 Conclusión El Shelly H&T Gen 3 es la solución definitiva para el monitoreo de temperatura y humedad. Su combinación de un chip potente, una pantalla E-Ink funcional, una batería de larga duración y una conectividad dual (Wi-Fi/Bluetooth) lo convierten en una inversión inteligente para cualquier hogar inteligente. Olvídate de los sensores lentos y de las pilas que duran un suspiro; este dispositivo es sinónimo de fiabilidad y eficiencia. ¡Una compra obligatoria para mantener un clima interior saludable y optimizar la eficiencia energética!

Top quality product from a top quality company. It works perfectly, the values are quite precise, battery life is acceptable.

Keeps temperature and humidity updated in areas where a want temperature and humidity to trigger actions in Home Assistant. Works perfectly fine!

I purchased this humidity and temperature controller as I wanted to have a remote control device to alter heater settings when required. When I received it I immediately realised that it was an excellent visual device too, as it uses the same screen technology used on the latest Kindle Scribe, which makes it easy to read the screen in poor light and very strong light, which the cheaper displays do not use and consequently are a pain to physically read. It also operates off batteries or a USB C connection, the latter being best if you are using it tom perform frequent control functions. It was also easy to set up with the Shelly app and gave accurate readings. All in all good value for the money.

Nie działa za Apple Home, pomimo wielkiego logo na stronie produktu. Zapowiedziane wsparcie dla Matter również nie istnieje. Produkt reklamuje się funkcjami, których nie posiada