Shelly Blu Door/Window Black | Bluetooth Operated Sensor | Home Automation | iOS Android App | Alexa & Google Home Compatibility | Lux and Tilt Angle Measurement | Set Custom Activation Scenes

Instructions suck. But great product
It works great but instructions really suck! I returned one thinking it wasn’t working but it was. Check on YouTube for the video on the Shelly guide. I can’t post the link on the review but it will takes 5 min to set it up. Hope that helps

Great replacement for a door/window ZWave sensor
These work fantastically well as a trigger for doors and windows for automations in Home Assistant. They have tremendous range; one Shelley Gateway located in a central location of my house can detect/monitor these small sensors all over the 5,000 square foot dwelling. They also have an ambient photosensor to tell Home Assistant the light level of the room, as well as a built-in tilt sensor to detect how tilted the unit is. They are also very light weight and tiny, easy to hide, and come in three colors to help it blend in even more.I will dock a star, however, for how difficult they can be to open up, how in roughly half of these that I have bought their batteries arrived dead, and how when you first get them, they “kinda” work until you update their firmware, and the firmware update is quite flaky and requires frequent “wake up” sessions and force quits of the application to get them to work.I’d like to see Shelley expand this as an option to create a whole-home security system alternative to zWave/ZigBee devices by adding a true security hub, or at least a siren/audible alarm to indicate an intruder. Until that day, I can probably do alternative methods, but these sensors are absolutely great once you get a new battery into them.

Works Great for Me
Using this little bluetooth contact sensor in the mechanical room of my basement, on the lid of my washing machine. It’s part of an automation on Home Assistant that ends a “nag” if I haven’t removed my wet laundry after a cycle. If the lid is open for greater than 20 seconds, the nag turns off. The lid closes, the nag is reset for the next load.This was very easy to install and it’s quite small. In my case, it melds in quite well with my washing machine. Because I have bluetooth proxies everywhere, I have zero connection issues.It was definitely a good value for the money, and enables me to use a non-Zigbee device in a location that sometimes gets Zigbee-cranky.

Works great, but be careful where you mount it.
First off, out of the box, the battery was 50% discharged. I mounted this inside of a mailbox to notify me when a delivery arrived. The mounting tape works well. Works fantastic for my purpose.When I went to change the battery, the sensor was too close to the side wall and I was unable to remove the battery due to the edge being too close to the side of the box. The unit broke when I was trying to pry it away from the tape.

Ho acquistato questo dispositivo per monitorare l’apertura della porta e migliorare la sicurezza della casa. L’installazione è stata semplice e immediata: tramite l’app Shelly il riconoscimento è rapido e la configurazione richiede pochissimi minuti.Il vero punto di forza è l’integrazione con Home Assistant 🏡. Una volta aggiunto alla rete, il sensore viene rilevato automaticamente e si può subito utilizzare in automazioni, notifiche di sicurezza e scenari personalizzati. La risposta agli eventi è veloce e l’aggiornamento dello stato è sempre preciso.📸 Nota sull’installazione:Il sensore si mimetizza molto bene sulla porta grazie alla finitura effetto legno. Una volta installato, risulta poco invasivo e si integra perfettamente con il telaio, mantenendo un aspetto pulito ed elegante.La qualità costruttiva è solida, il segnale Wi-Fi rimane stabile e il sensore risponde sempre in modo affidabile.✔️ PRO:- Configurazione immediata tramite app Shelly- Integrazione perfetta con Home Assistant- Rilevamento rapido e preciso 🚪- Ottima resa estetica grazie all’effetto legno- Segnale stabile e costruzione robusta❌ CONTRO:- Forse un po’ troppo costoso

Aunque cuesta algo integrarlo si no estas en el mundo de la domótica, luego es útil para saber si tienes ventanas abiertas si llueve, pudiendo hacer que, por ejemplo, se bajen persianas para que no entre el agua si estas fuera de casa o sin pasar por todas las habitaciones. Tiene sensor de luminosidad por lo que también se puede integrar con el encendido de luces.