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Your cart is empty.Pete S.
2025-08-10 13:13:26
I have a Home Assistant server running at my house that controls a variety of devices and services (e.g. lights, switches, valves, etc.) and wanted to add temperature sensing.My old sensors from a different brand used Bluetooth Low-Energy, but their short-range signal couldn't reach the server (I had to use their phone app, which was not ideal).I had previously installed a Zigbee mesh network for several devices, and adding these Zigbee sensors to that network was simple: tell the Zigbee coordinator to look for new devices, insert the batteries into the sensors (or push and hold the button in the sensor for 5 seconds to enter pairing mode), wait 30 seconds, and they're good to go. I use Zigbee Home Automation (ZHA) and it got them set perfectly.The measurements are accurate (they match reality, as determined by other sensors I've previously calibrated) and precise/consistent (the Third Reality sensors all agreed with each other within the specified accuracy).For testing purposes, I moved several of the sensors around to different areas of the house and after a few hours they realized that there was a closer Zigbee router with stronger signal and automatically switched to connect to that, better signal. Certain other brands of sensors like "lock on" to a single router and if that router ever goes offline or they lose signal from it they never try to find another router on the network. That's not an issue with these sensors.Pros:- Simple: there's one button to put the sensor in pairing mode, and an LED that flashes to indicate when it's in pairing mode.- Checks for better signal/routers and will switch as needed. (That is, it's a good member of the mesh network.)- Accurate temperature and humidity readings.- Reliable data transmission. With the exception of the few times I rebooted the server or disconnected the Zigbee coordinator for testing purposes, the data from the sensors has been reliably sent to the server without issue. Several sensors were within a few feet of a WiFi hotspot (WiFi can sometimes cause interference with Zigbee since they share the 2.4 GHz band) and worked without any problems.- Use standard AA batteries rather than costly coin cells.- In addition to sending temperature and humidity data, they also send their battery charge level. Setting up an alert in Home Assistant so one knows when to change the batteries is recommended.- Very power efficient. Two AAA batteries should give years of service.Cons:- No option to calibrate the sensor. (While the sensors on mine are accurate, it would be nice to have an option to send calibration commands to them to correct for any error.)- No loop or other means of mounting or hanging it somewhere. My Bluetooth-based sensors are hung from a short string in the air in their various locations so they only measure air temperature and aren't influenced by sitting on a shelf or something. These sensors don't have a hole for threading a string or lanyard.
J s
2025-07-22 15:48:30
I’m using two of these with Home Assistant and ZHA. Unlike the smaller “A†brand sensors, these have been reliable and totally trouble free. After a few months the battery is still at 100%.These are big sensors, but who cares? Just stick them in an inconspicuous place and forget about them.
Nathan Hatch
2025-07-21 17:56:10
I bought these to put in my reptile enclosures to get ambient temperature and humidity readings that I could output on a Home Assistant dashboard. These do not disappoint. They work perfectly, paired instantly with ZHA, and are accurate.
BillG
2025-07-17 17:10:52
Edit: I stand corrected! It appears that my connection issues previously mentioned were due to interference with the Zigbee hub antenna. After several changes in orientation, and position, signal levels and stability are greatly improved. If I had any other complaint, it would be that when a sensor loses connection, you have to phyisically go to the sensor to reconnect it. This may be more of a Zigbee thing rather than a device issue, but for several of my sensors, this is a real pain. Hopefully after the recent changes, this won't be a problem.Units connected easily and seemed to function well. Problem is that out of 6, 3 have lost connection at least once. After some "fiddling", they can be reconnected but very annoying. 2 of the 3 that lost connection are the closest ones to the Zigby antenna. One literally about 15ft away has lost connection twice. Firmware is at latest revision. 3 have had no issues but 50% reliability after a few weeks won't cut it.
MARTY MCCAFFERTY
2025-06-28 10:36:22
Works with my SmartThings hub. It was easy to connect to SmartThings. I am able to see the temperature and humidity in my SmartThings app on my Phone. It is nice to be able to check the temperature of my home when I am away. I like that I can see the humidity also, so I know if I need to make any adjustments to my humidifier.
Erik Potter
2025-06-24 13:19:38
Because they use AAA batteries, these don't have the same tendency to disconnect from my zigbee network as the Aqara sensors I was using with ZHA. They're a little big, but they work, and the batteries last for a long time.
LF
2025-06-05 12:15:07
I got two of these and they paired up quickly and seemed to be perfect. Then... They don't do anything. I read they slow report to conserve battery but the other zigbee sensor inches away show big changes in temperature overnight. If I take a battery out and put it back, they come back online for a short time, then back to nothing. Using these with Home Assistant, latest versions on everything. Going to spend a little more and go with the sensors I know work because I have a few already.
Zen
2025-05-21 14:50:29
Used to replace my Sonoff sensors that occasionally drop offline and never reconnect.I already have a 3rd reality magnetic door sensor which has been installed for well over a year with no issues so hopefully these will be as good.
Robert S.
2025-05-09 18:59:55
My use-case for this sensor is to monitor the temperature inside my freezer and my fridge to provide early alerts if either fails and the temperature starts to rise. I use this with my Hubitat home hub. I also have one sealed in a waterproof floating container in my hot tub to tell me if my heater has failed (bad scenario in the winter).Overall I am super happy. I had tried other temp sensors from brands like Aqara and SonOff. Those continued to fail in these applications because of the smaller button cell batteries. Even the larger 2450’s didn’t work in the freezer as they don’t like the extreme cold. These ThirdReality sensors with two AAA batteries work super well with no battery issues and maintain a strong signal. I had similar problems with the other brands with intermittent connection fails for the hot tub application, and this sensor works much better with zero issues.Also happy with solid build quality and easy pairing. I also own ThirdReality vibration sensors and those are equally great.
Client d'ie jean
2025-02-22 18:06:13
Bien reconnu par home assistant est surtout pour faire des scènes ou scénarios livré dans les temps enseigne sérieuse merci à eux.
Kunde
2025-02-11 20:19:10
funktioniert problemlos
JuergenS
2025-01-31 16:40:25
Ich setze den Sensor an geschützter Stelle auf meinem Balkon ein und habe ihn mit einer Sonoff Zigbee Bridge ein. Funktioniert einwandfrei
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