Shelly H&T Gen3 White Smart Wi-Fi & Bluetooth Temperature & Humidity Sensor

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.

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?

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.

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.

Works great and connected easily to wifi. I wanted to monitor temperature and humidity where connecting to mains power is not an option. Also I wanted to monitor temperature and humidity remotely via wifi. This device fills the bill perfectly. There are a couple of quirks due to the battery power saving design. It only updates when a specific temperature or humidity change is exceeded. You can set the sensitivity to change but setting the limits too tight will affect battery life. Also when you make a setup change or update firmware that will not occur on the device until a transmit cycle is triggered by conditions changing. You can trigger it to transmit by pushing the update button which is accessible after you remove the battery cover.

I had great hope for this device. On paper it looked perfect for my use case and I purchased six units. I returned all six after two units failed to operate on battery and a third was intermittent on battery. I did not have time to debug the problem. With that said, registering the device is not clean and simple, and I was able to mess it up, but once configured one unit seemed to work well. Note, to conserve battery power, these devices report temp and humidity once, then power down WiFi and wait for the temp or humidity to change before powering up WiFi and reporting the new values. So if temp or humidity change a lot, then battery life will be shorter. The ePaper display is a great idea if you need to directly see the measured temp and humidity vs checking the app. The app allows you to bias the measured temp and humidity readings, so you can sync the units to one another or another thermostat. This is a useful feature to compensate for normal variations between devices. Again, the device looked good on paper, but the battery issue was killer for me.

I have three of these. I just have them hit a local web server and report temperature and humidity. If you want something to poll, this isn't what you are looking for. They instead only connect to wifi and "push" data when the temperature or humidity changes. I suspect thats due to it running on AA batteries, and trying to get good battery life. As long as you are okay with that, then these work great. I'm using one to check outdoor temperature, and one to monitor the temperature of my dog house. I have the web server kick on a local power switch when it gets too cold, which kicks on a 200w panel heater (designed for chickens) and warms the dog house. Then I have it kick off when it gets too hot. The dog appreciates it when its super cold out. I have it kick on at 55 and off at 65. I wouldn't want to use it for too narrow of a temperature range though because I've seen it wait until 53 to turn on and it sometimes stays on a few degrees higher then 65. I prefer Shelley devices since they can be used without cloud involvement and they are good for hobbyists that find no reason to send sensor data all the way to a data center just so local devices can then reach back out to the data center to act upon the data. When you have everything working locally, response times are in the millisecond range instead of the second range (which can grow to the minutes range during high usage).

I chose this unit because it would connect DIRECTLY to my home automation via wifi (no secondary Z wave, Zigby, or Bluetooth LE networks.) Once the unit is properly configured it works very well - BUT - this is extremely difficult to do when it goes to sleep every 3 minutes. One mistake and the unit will go offline after 2 or 3 hours and you have to go back in and try to troubleshoot it - in 3 minute intervals! That can be VERY frustrating, as many of the negative reviews are stating. I get it that this is a power saving function - but there needs to be a button that will hold the unit in programming mode until the user finishes the setup. It would be SOOO MUCH EASIER! One nice feature, however, is the ability to calibrate the temperature any humidity readings. Once they are calibrated - the readings are vary stable and as accurate as you can make them. Again - in 3 minute intervals! Another great function is the E-ink display. It's a real power saver! I've had this running continuously for 6 months and my battery has not dropped below 92%.

Io lo uso per controllare condizionatori samsung tramite app smart things (alexa non è in grado di far partire i miei condizionatori in modalità riscaldamento). Note: 1) Scaricate Shelly Cloud e configurate il dispositivo (rete wifi da usare). 1) Dategli un IP STATICO tramite la pagina di configurazione del modem (anche ai condizionatori/deumidificatori/umidificatori) altrimenti ogni tanto si sconnetterà dalla rete e se non siete in casa non lo potete riconnettere). 3) Abilitate il cloud in Shelly Cloud. Il dispositivo manda al cloud dati periodici (se alimentato a batteria ne manda molti meno) e segnali legati alle soglie impostate riguardo alla variazione di temperatura e umidità. Mettete soglie basse o non comunicherà mai con la rete e di conseguenza non partira la gestione dei dispositivi da comandare. 3) il dispositivo sta in modalità sospensione per la maggior parte del tempo e riceve le vostre impostazioni solo quando esce da tale modalità, ossia solo quando si connette al cloud. Per fare un invio forzato al cloud bisogna aprire il coperchio e premere il pulsante set. In questo modo si connetterà al cloud e riceverà anche tutte le nuove istruzioni riguardo alle routine e alle impostazioni interne gestibili da Shelly Cloud. 4) Se alimentato tramite usb, serve alimentatore da 5V. Quelli con uscita doppia (9 e 5V) non vengono riconosciuti, perlomeno a me succede questo. 5) disattivate il bluetooth del dispositivo dall app Shelly Cloud se non vi serve, le batterie ringrazieranno. Serve un po' di pratica all inizio...

Perfetto, arrivato nei tempi descritti, ottimo per vedere la temperatura e l'umidità in camera. Anche fuori casa.

✨ 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.

preso perchè Shelly è parecchio indicato ed attivo con Home-assistant, infatti è stato riconosciuto subito con dispositivo ed entità. Le batterie non sono presenti (4 AA) così come non è presente un alimentatore e cavo usb-c. Lo sto usando con le batterie, è meno reattivo ma nel complesso non è una tragedia, il check avviene un paio di volte l'ora come minimo. Attenzione perché da qualche parte avevo letto "plus" che indica il fatto di poter fare da gateway ai modelli Blue, questo non è vero nonostante abbia il bluetooth. Probabilmente errore mio, in ogni caso sappiate che non è presente questa funzione. Un po' scomodo il tasto di attivazione del web-server, che permette tra le cose anche di effettuare l'aggiornamento firmware. Questo talvolta va premuto ed è dentro la scocca a pressione. Vero che servirà una volta l'anno, ma potevano farlo meglio. Nel complesso sono soddisfatto, la misurazione per quanto testato è corretta, il display e-ink è bello da vedere e si legge bene.