I recommend this article, it is highly advisable that we all have a smoke detector, whether this or another brand, why? Because if there's a fire at home for whatever reason. If we're awake in principle. We 'd realize before the fire was uncontrollable and we could turn it off, but if the fire happens when we're asleep. When we want to know when we smell the smoke. Honestly, we couldn't do anything anymore, and surely we have very little chance of going out alive. A fire at night is almost 100% sure that everyone we're asleep doesn't get out alive. So put him home! Which costs very little, really. Buy one In my case this seller shipping very fast I recommend this model, that if all models every 10 years need to be replaced. I hope it was helpful.
item arrived fast..cant connect to europe version hub doesnt show up..but i found a way around it..you choose a zigbee plug..you push 3 times on the detector..it connects but leave timer to go to zero..than its connected but doesnt show up on your items..but if u put smoke to detector it alarms and there is a chinese notification on your phone about smoke detection.. no automation or anything at. least it works.. also doesnt work if u choose china server since it shows on it that hub isnt compatible..(euro type hub)