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Zigbee Temp + Humidity Sensors


Hi all,

I'm looking for zigbee temp and humidity sensors that work with HA, are pretty accurate and either are mains powered or have use a battery that can be recharged e.g. AA or AAA.

I like the Sonoff SNZB-02D, but they use disposable coin cell batteries.

One I found that looks like it might fulfill these criteria is

3reality.com/product/temperatu…

But they're kinda spendy. Anyone have any recommendations?

This entry was edited (1 day ago)
in reply to ueiqkkwhuwjw

I have had a few - Nice to have the display - good battery life (I use rechargable AAA from IKEA) - My HA / MQTT system hasn't been runnnig properly as I'm trying to get #Zigbee2MQTT running inside #yunohost - and life has been a series of disruptions.

homeassistant reshared this.

in reply to ueiqkkwhuwjw

I got these: pearl.de/a-ZX7311-3110.shtml;j…

Not sure how precise they really are but they connected easily. Have them running for 34 months now, they run for months on rechargable AAA (I got high quality ones, Varta I think)

in reply to tofu

Cool :) bonus points for the pearl.de link, thanks.
in reply to ueiqkkwhuwjw

I have one of the 3rd reality ones and it's been good, only had it get stuck one time in a year and I think it was just a low battery thing. It indeed does use a AAA battery, but the sensor is expensive for what it is unfortunately.
in reply to ueiqkkwhuwjw

Wifi instead of z whatever

shelly.com/products/shelly-h-t…

Shelly's integration works well, and mqtt is available. I use the. Plugged in and the update rate is awesome.

This entry was edited (23 hours ago)
in reply to ueiqkkwhuwjw

I have these:

zigbee.blakadder.com/Tuya_WSD5…

...use 2xaaa batteries. Accurate and reliable, got a bunch around the place.

in reply to IanTwenty

+1 from me as well, i have a lot of them and use them with 1.2v nimh cells, they work well
in reply to ueiqkkwhuwjw

Hi, If the one you link is good enough for you in term of accuracy, you can pick nearly everything you find at Aliexpress. Since you will be using rechargeable batteries, might be best to pick one without screen.
in reply to ueiqkkwhuwjw

I think the options either that combination are limited. IKEA Zigbee devices use removable batteries, but they don’t have a temperature sensor. They do have a USB air quality sensor but it’s a bit more complex/expensive.

There are some good WiFi, Bluetooth or RF options with removable batteries but they won’t be Zigbee.

I’ve heard of some people modifying the coin cell devices to used a wired power supply, maybe that would be an option.

in reply to thehatfox

Aliexpress has plenty of ones with a screen (its a low power LCD screen like a casio watch) that uses AAA batteries. - It has a backlight that you can put on to read it in the dark.

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in reply to ueiqkkwhuwjw

If you are OK exploring espHome then have a look at "Apollo Automation" devices. apolloautomation.com/products/…
in reply to ueiqkkwhuwjw

If the screen isn't important, Third Reality makes a slightly cheaper version with no screen that also takes AAA - conveniently on sale now

camelcamelcamel.com/product/B0…

I have a mix of those and an old version of these Govee Bluetooth sensors that are also fully offline, take AA batteries, and pair well with HA

camelcamelcamel.com/product/B0…

Not strictly ZigBee, but cheaper, just as accurate as the 3R, and fully offline

in reply to ueiqkkwhuwjw

Of course! From an end-user the experience between Bluetooth and ZigBee sensors is basically indistinguishable, except for range.

I have a detached garage, on the opposite end of my property from my HA controller, so the Bluetooth sensor out there specifically was a little flaky. The BT sensor is rated for ~160 ft but realistically it's 50-100 ft if your home has walls.

Swapping that one sensor to ZigBee so it could tie into my mesh network solved the problem. All other BT sensors have had zero issues, and their AA batteries unsurprisingly last longer than the 3R ZigBee AAAs, but both last at least 6mo.

Some Shelly devices can be used as "Bluetooth repeaters" but I'm unsure of the specifics of how that works.

in reply to RvTV95XBeo

Good to know, thank you. I think the only thing I worry about with BT is vulnerabilities. Not sure if ZigBee is any more secure but I've heard of a lot of BT vulns in the past. Probably doesn't matter for a temp sensor, so probably just important for the dongle/driver being used with HA.