Recommended smoke detectors - reliability, no false alarms, battery life?

For our family house and for the house of my mom I would like to change from traditional 433 smoke detectors to Zigbee. Right now I have almost nothing, just a Raspi with Home Assistant on it. I would mount approx 30 smoke detectors, some water leakage detectors and of course a number of repeaters to get them all connected.

When searching for “Zigbee Smoke Detector” I came across those four models:


So: Any recommendations which one to use? One of those or any other? They should be approx the same price range.

Ideally I would be able to recharge them via USB but it seems like they all need batteries, so I would like the battery to last as long as possible.


And here the other two models

I also want to know this.

Aren’t there any European products? I believe they must be somehow certified in order to be accepted as the necessary sensors you are required to install in new homes.

I’m soon-ish moving into a new flat, so I’m already planning it home assistant wise, but I’m also not really far on fire alarms.

They would be nice to use as alarms as well.


Having a look here
and here
there are quite some differences which values they expose.

So this is bringing me to the next point: How do I get them really connected so that
IF one-sensor-detects-smoke THEN all-sensors-give-alarm
What I understood is: Home Assistant could trigger any function is one sensor detects smoke. But what does it trigger then? Are there any smoke detectors where the siren can be triggered from outside?

Seems like those sensors
can be used both as sensor and as a siren, correct?

I’m using 2 HEIMAN Zigbee Smoke detectors on conbee II which work pretty well

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Do the Heiman sensors habe the option to use them as a siren? So detector #1 detects smoke, Home Assistant tells ALL sensors to make alarm?

I never tried this. Also not available in service siren.
On deconz, I see 2 clusters IAS WD to possibly sent a warning , siren or strobe and IAS Zone to define zone where I guess you can group sensors in the same. I don’t see those clusters translated into HA.

I use others methods like Google assistant, lights and smartphone notification
link to product (not taken from that store but same picture):

Alternative to zigbee is to use standard linked detectors with a central relay control for monitoring:

Works well for me.

I notice Shelly have just launched wifi smoke alarms as well…

SA12IZL: It is AC powered, lacking router functionality. Not useful.
SMSZB-120: Seems to be sold as " frient Intelligent Smoke Sensor Zigbee" for 40.- € including the standard CR123 battery
R7049: Discontinued
JY-GZ-01AQ: Sold here excluding the expensive CR17450 battery

I use the Popp smoke alarm + siren: POPP Smoke Sensor with controllable Siren (701486) -
You can use the siren independently from the smoke alarm (I use it also as an alarm system along with motion detectors). You can also turn off the alarm, once the siren is on, so you can silence it. Its Z-Wave, so you need a Z-Wave gateway too.

In my garage, I dont have Z-Wave, so I bought very recently a Shelly Smoke Plus, however it looks like one cannot turn off the alarm/siren once it triggers, however, you can perform other actions as soon as the Shelly Smoke Alarm triggers…

With the Popp alarm, can you turn off the siren through HA?

Yes you can

@Cabletwister did you find the right product for this?

Yes I am using several different smoke sensors, the JY-GZ-01AQ in the rooms where somebody is likely to sleep, so where I want an alarm even if there is smoke in a different room.
What I like about this sensor is that it exposes a ton of entities, not only the option to start and mute the siren remotely.

However, it is too early to speak of an experience. My next step is to buy a smoke-detector-test-spray and actually test how good the detectors actually detect the smoke. So right now I would not say that I recommend any product or even have solid long-term experiences with it.

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Thanks, I will look into that. Please let us know if you have some feedback after your testing :grin:

Can someone already share some experiences? I’m looking to replace my old detectors and add a couple of new ones.

I wouldn’t trust Chinese brands for fire detection, they are also not certified for use in Europe, so if you want to use these you need other certified devices in your home to comply to local laws.

European laws don’t permit switching off a siren through just software, so there needs to be a physical button to turn of the siren. The digital turn off is only allowed for paired smoke detectors to disable the siren of the ones that didn’t detect smoke/fire.

I’ve used these in the past:

They work in Z2M and ZHA.

They are really small, so didn’t really fit on the holes of the original dumb smoke detectors. Never had a fire detection to see how they responded but also never got a false positive. So not sure if the digital siren turn off works when actual fire is detected or just for when you start the siren through Zigbee.

I’ve switched to ones from Bosch as those are normal sized and I’ve switched other devices to Bosch Smart Home as well.

The Bosch work in Z2M and ZHA, the siren will be controllable with Z2M soon. I am using it with the Bosch SHC II currently, as the ‘test’ method and linking is not yet supported on other implementations.

The Bosch BSD-2 have the switchable siren now in Z2M starting with 1.35.2 release.

I’ve recently stopped using the Bosch SHC II, it was just too limited for certain features and not fully implemented within HA components. So went back to a combination of Z2M and ZHA for my Zigbee devices.

Because of not being limited to just Bosch, I’ve recently switched back to the frient Heat detector for our shed, which was not good with the Bosch as it kept triggering when it was moist outside. For the moist/dusty environment you really need a Heat detector, and not (optical) Smoke detector.

Inside the house I’m keeping the Bosch, as the functionality is now the same for smoke detectors.