The only current name brand Zigbee sensor I'm aware of that includes Lux are both the indoor and outdoor Philips Hue motion sensors.
It does have some limitations on lux reporting frequency (5 minutes, not adjustable), but they are dependable and accurate.
Not an offically compatible illuminance sensor, but there is a community driver for a Xiaomi Mijia light sensor. Xiaomi devices don't like incompatible repeaters and like many Zigbee devices, they will respond very poorly and tend to fall off the network if you have repeating bulbs (e.g. Not Sengled) on the same Zigbee network, so do keep that in mind.
If you keep your Zigbee network free of incompatible repeaters and bulbs, there are some Xiaomi devices that are actually quite stable. I cannot say for sure, but this light sensor might be one if you want to give it a shot. This is a Zigbee 3.0 sensor, but I have no experience with it. You can ask in the community and I'm sure you'll get feedback.
Thanks Mike. I think Hue requires its own hub, though, right? I already have too many of those and am working on getting rid of them. I replaced all of my bulbs with Sengled ones and after I have installed an acceptable light sensor, I am going to work on replacing the 2 other hubs that I have for motion switches and motion sensors.
I used 4 of them for ~7-8 months on a Hubitat with Aqara-compatible repeaters. They never dropped off. Response to changing light is usually under a minute.
So while I agree with all the points you’ve made about Aqara devices, I would recommend these - I just purchased 4 more.
I just started using these - have 2 but have paired 1 so far. Seems pretty stable and readings are really quick (using Markus driver).
@aaiyar - Slightly off topic: Mine is currently routing through a Samsung Zigbee plug. Is it just a matter of time before it gets flaky and should I just move the Samsung and replace with the IKEA extender? I have a Centralite plug (only as a repeater) too but that seems pretty much useless - nothing is routing through it.
I bought 4 of the Xiaomi Mijia light sensors (model GZCGQ01LM) last year from here: ($37 for 4, or $9.25 each)
(these are the same as linked at Banggood above, but that link didn't work for me)
All four of mine were originally on SmartThings, but last month I moved the last of them over to my C-7. I was originally using Marcus' driver on them, but I've switched 2 of them to the newer, simpler unified driver by @chirpy.
They are Zigbee 3.0, but people have reported that these (like the Xiaomi Aqara sensors) can be problematic and drop off. I've not had that happen with any of mine yet, but I also use Ikea smart plugs as repeaters which seems to work well with these.
Overall, these were inexpensive and so far have been very reliable.
I've got two of these - they paired easily but I've yet to get an actual luminance (illuminance?) level report.
I've tried the Markus drivers and these https://github.com/waytotheweb
In both cases (both sensors, both drivers), they show as present, but no light level reading.
I've tried the double-clicking multiple times, placed them a couple feet from the hub, waited a long time, etc.
C5 Hub.
Any thoughts? Again - no issue pairing but just not getting light level reported.
Strange. Removed battery, removed device, started fresh. Current driver, current hubitat software.
Initialized, double-clicked, placed right next to hub.