SONOFFZigbee Indoor Temperature Humidity Sensor, SNZB-02D LCD Zigbee Thermometer Hygrometer, Works with Alexa & Google Home for Remote Monitoring and Home Automation, ZigBee 3.0 Hub Required, 1-Pack

These are good sensors to place around the home to keep track of the humidity in various areas. I’ve got mine tied in to Home Assistant running on a RPi.

Minor difficulty pairing with Smartthings. Install Edge driver before pairing.

This device is a versatile temperature sensor designed for users integrating it with ESP32-based systems like Themerostat or Zigbee2MQTT. While it requires some setup to extract meaningful data—unlike plug-and-play Zigbee solutions—it offers granular control over temperature units, icon thresholds, and reporting. Its battery life performs well, though occasional reporting inconsistencies were noted. The ability to customize thresholds and leverage Zigbee protocols makes it a strong choice for advanced users prioritizing flexibility over out-of-the-box simplicity.✅ Compatible with ESP32/ESPHome and Zigbee2MQTT for custom automation✅ Adjustable temperature units (C/F) and icon thresholds via Zigbee✅ Long battery life with flexible reporting settings✅ Requires background configuration for full integration✅ Ideal for DIYers tweaking home climate control systems

The SONOFF Zigbee Indoor Temperature Humidity Sensor (SNZB-02D) is an excellent, versatile device with reliable performance. Despite being marketed as an indoor sensor, I installed it outdoors, and it has held up well. It integrates seamlessly with Hubitat, making it an ideal choice for smart home enthusiasts.In my setup, I use it to monitor outdoor temperatures to automate switching between my heat pump and oil heating system. The sensor provides accurate and consistent readings, enabling efficient control of my heating system based on temperature thresholds. Overall, this sensor is a great value, offering flexibility and reliability for various use cases.

poor build quality... battery refuses to stay connected causing device to disconnect unless I actively keep pressure on it to ensure it stays in... good thing I only needed it to act as a example for my own experiments building my own device using ESP32-c6's and integrating with Zigbee2MQTT, otherwise I would have returned this, but it is functionally useless due to the battery...Also, Coin Battery's are the worst! let us use AAA at the minimum those can at least be made rechargeable! the device is certainly big enough to fit several AAA batteries

They’re almost good. I have 2. Both have some issues with the screen going completely blank if you squeeze them slightly (not hard, just picking them up). Squeezing or repositioning or pressing on the frame usually brings the display back on.One of them refuses to update it’s firmware, even when placed right next to the radioOtherwise they report their data perfectly fine back to HA

I use this in conjunction with my Hubitat Elevation hub, and all works great. Wish it has a light, as it is impossible to read in the dark, but power consumption would have been an issue? I just look on my phone or tablet to see temps all over my home, as I use many of these.

The SNZB-02D is so sleepy that its its incredibly difficult to get working reliably at least w/the hubitat elevation c-5 that I have tried it with so far.It frequently takes hours long vacations, or does NOT bother to show up at all.Even the recent hubitat firmware update has NOT alleviated this problem, nor has the TUYA driver been much better. I HAD planned on returning it but I have since decided to see if I could not coerce it into behaving.I have just performed another full reset, or at least I hope that it is by removing the CR2450 battery and then repairing to the hubitat using the TUYA driver, and will let it run overnight as with my last semi-functional run.After that this has made me motivated to install an external zigbee dongle to one of my servers and get home assistant up and running, it also motivated me to finally purchase some USB extension cords for said dongle. Well, actually two as I also have a z-wave dongle but currently have zero z-wave devices.Looking at home assistant I see two ways of trying it out, first using the hubitat integration to see how that works, then if it does shelve that for a while, while I migrate my desktop to a new case.After which the plan is just to fully migrate to home assistant using my own radio dongles directly attached to the server and see how that fares v. the hubitat which has not been too bad excepting for communicating with this device. What gives me pause in the full migration scenario are the plethora of lights which have convoluted re-pairing enablement, i.e. the 2s on, 3s off, 2s on, etc. to trigger the pairing which would be very time consuming especially that some of them are on the outlying portions of the zigbee network coverage area, i.e. finicky at times, flawless at other times, the finicky bits happen when you least want them to.The c-6 isn't bad, however it has internal case antenna which may also be exacerbating the connection problem along w/the sonoff being stupidly sleepy, so much so that Im not even sure that I could update its firmware even if there was one available as other devices take upwards of 10m to update...So next step if this test today does not produce better results will be home assistant, and see if I can use both a dongle and the hubitat, and try the sonoff on the dongle connection, but I need to see if thats been done as it appears that hubitat integration to home assistant is to offload processing to home assistant while avoiding having to purchase dongles... (on the surface)I know that amazon will complain about comparing to other devices but i also in the same order purchased a similar temperature/humidity sensory from another manufacturer and that one worked out of the box, updating the firmware(10m) worked, and I have since bought a second for garage temperature readings. First one is used with some rules to control a heater in a room, a dumb heater controlled by a smart plug linked to some rules determining plug on and off and times of day that they apply, similar to another reviewers desire to control fans...But bottom line I cannot recommend this product as it is poorly designed and difficult to work with for its intended purpose, especially compared to well anything. Avoid until or unless they update their firmware and good luck updating existing units as they probably won't stay online long enough to successfully update to begin with...