For some years I am using 10 Fibaro smoke sensors connected to a Fibaro HC2. They look great, provide me with temperature in each room, but unfortunately there is also a downside. From time to time they cause false alarm. Sometines for months no alaram, and than three times in two weeks in different rooms. And they also loose sometimes connection to the z-wave network. And they alsways start ringing because of empty battery during night time. So I am looking for new smoke sensors I can add to my smart home.
Requirements:
They must have VDS signature (required in Germany afaik).
Nice looking (smaller, white high gloss) would be appreciated by my wife.
Connected to my smart home (Homematic, Hue, WLAN, )
No Z-Wave becouse I wnat to get away form it (replacing Fibaro Wall Plugs with Tasmotas and Shellys)
My favorite would be the shelly smoke 2 - but on their website they say “it´s comming soon” … for more than two years …
I had a number of Fireangel WST630 and WHT630 units that supposedly have a 10 year life but always failed after about 2 - 3 years. They did not talk to anything other than each other. I have replaced most of them with Heiman Z-Wave Plus smoke sensors from Vesternet. Our house is spread out so I use a couple of Zwave Plus light switches as repeaters as well as a real repeater. They work well, no false alarms (no real ones yet either) and we get notifications on our phones of an alarm condition. I also found that Vesternet sell a ZWave Plus module for the Fireangels and used one to convert a failed WST630 to ZWave Plus. I also have one Popp ZWave + 10 Year Smoke detector, which works well but is expensive - twice the price of the Heiman units.
I should add that all units now have replaceable batteries.
I use cavius smoke alarms.
There is a rf433 implementation of it and a good post on the ha community forum about it.
I have bought the mains powered ones with a battery backup, because the battery-only ones promise 10 years of service, but that is in perfect environments and never achievable in RL.
With mains powered it is achievable, since the battery is only used when there is a blackout.
I have mine mounted on lamp outtakes, where I have a constant on wire I can use for the smoke alarm and the lamp can then be connected through it to the normal outtake.
