THIRDREALITY Zigbee Temperature and Humidity Sensor Lite, Smart Thermometer and Hygrometer, Hub Required, Compatible with Echo Devices with Zigbee Hub Built-in, Home Assistant, SmartThings, Homey,
Original price was: £19.99.£17.99Current price is: £17.99.
Price: £19.99 - £17.99
(as of Jun 22, 2025 17:12:36 UTC – Details)
Product Description
Set smart scene，improve nighttime comfort
Set up smart scenes for a better night’s sleep: When the Temperature and Humidity Lite sensor detects that the air humidity drops below 45% at night, it automatically turns on the humidifier to improve sleep quality.
Maintain Room Comfort
When the indoor temperature exceeds the set comfort range,ThirdReality APP will immediately send a notification to your phone and automatically turn on the air conditioning to keep the indoor temperature comfortable, ensuring quality of life.
Home Automation
Seamlessly integrate Home Assistant-Add Zigbee Device,SmartThings and more. You can easily create home automation scenes with the THIRDREALITY App. Choose to add THIRDREALITY actuator products and embark on a comprehensive smart living experience, enabling even more life-like scenarios
Setup Anywhere
The Temperature and Humidity Sensor Lite boasts a minimalist design with dimensions of 2.21 x 0.5 x 2.21 inches. It comes equipped with a 3M-rated adhesive backing, allowing for versatile placement options such as on walls, tables, doors, and more.
How to factory reset the &H sensor lite？
Long press the reset button for 5 seconds until the LED light turns solid red, release the button and the LED light turns fast blue blinking, indicating it enters Zigbee pairing mode.
What is the battery life of the T&H sensor lite?
Two years battery life under normal usage conditions.
Why does my T&H sensor lite sometimes become unresponsive or even go offline?
Place sensor near the smart hub/bridge/smart speaker during pairing or software OTA update. Place the sensor within 12 meters from the Zigbee hub. Use Zigbee plug as repeater to extend the Zigbee signal range.
How to add the T&H sensor/T&H sensor lite to Apple Home?
Paired the sensor to smart bridge MZ1, then add the Third Reality Smart Bridge MZ1 to your Apple Home according to the bridge’s instructions. Your iPhone and Apple speaker should be on the same 2.4GHz Wi-Fi network.
How to add the edge driver in SmartThings?
Pls scan the QR code in the quick start guide and download the user manual, then follow the instruction to install SmartThing driver.
NOTES:ZigBee Hub is required and sold separately. Alexa app can only display temperature but no humidity.
Support Access Matter:through THIRDREALITY Smart Bridge MZ1 can be compatible with more platforms, such as Amazon Alexa, Google Assistant, Apple HomeKit and more,for seamless smart home integration.
Zigbee Standard Compatible:Works with compatible Zigbee hubs or Echo devices with Zigbee hub built-in, such as Echo (4th Gen), Echo Plus (1st Gen and 2nd Gen), Echo Studio, Eero 6, Eero Pro 6, Home Assistant, SmartThings 2015/2018, Aeotec, Homey, Hubitat, Homey Bridge, Homey Pro and Third Re. ality hub, ality hub, ality MZ1, Compatibility is assured for equipment mentioned.For items not listed, their compatibility remains unconfirmed, so we advise proceeding with caution.
Accurate environmental monitoring:Utilizes high-quality sensor from the industry-leading manufacturer, Sensirion. Refresh every 5s make it more accurate, with±0.3℃ accuracy in temperature from -15℃to 50℃ (5℉ to 122℉) and±2% in humidity from 0-100%. Experience unmatched temperature and humidity reading accuracy.Designed exclusively for indoor use.
Enhanced Home Automation: Utilize the device to automate your home’s climate control. Set alerts for extreme temperatures and automate your HVAC or fans to activate when the temperature reaches your set threshold. Humidity-based routines, such as activating a humidifier when the humidity falls below 40%, can be managed via compatible smart home apps like SmartThings, Home Assistant, and Hubitat.
Wide Application, Long Battery Life:This product has a simple design and a 3M-rated adhesive backing that ensures it can be placed anywhere:in basement,greenhouse,pet house,greenhouse, wine cellar, monitoring a humidifier or thermostat in baby nursery and more. Only 2 AAA batteries are required for at least 2 years of normal use. Ultra-low power consumption, supper long-lasting.
Remote Monitoring and History:With the device’s smart capabilities, monitor your home’s temperature and humidity from anywhere via compatible apps. SmartThings and HA users can access historical data, in addition, THIRDREALITY App provides a month of historical data to keep you in the perfect climate in your home. to understand trends and ensure your home’s climate is optimal for your comfort and the health of pets and plants.
6 reviews for THIRDREALITY Zigbee Temperature and Humidity Sensor Lite, Smart Thermometer and Hygrometer, Hub Required, Compatible with Echo Devices with Zigbee Hub Built-in, Home Assistant, SmartThings, Homey,
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Original price was: £19.99.£17.99Current price is: £17.99.
Zen –
Good quality Sensor and use AAA batteries to
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.
Martin –
Lässt sich sehr einfach ins Home Assistant per ZHA integrieren und liefert Entitäten für Temperatur, Luftfeuchtigkeit und Batteriezustand. Seit Monaten in Betrieb, ohne auch die kleinsten Auffälligkeiten. Empfehlungswert!
Ruben Pauwels –
Werkt perfect met ZHA in Home Assistant. Batterij gaat lang mee.
EricF –
Gets 5 stars like all the different ThirdReality Zigbee devices I have, stable and use normal batteries that don’t die all the time. It would get 10 stars if there was an external probe model, Zigbee ones are all but impossible to find, hope the manufacturer is looking, think freezers/water lines/crawl spaces/hot tubs etc. Photos are of a doable hack for fairly technical people and it easily fits back into the case. Requires removal of the SHT40 thermal sensor and decoupling capacitor both located on board tongue and 2 pull up resistors on the two traces back to the processor, the only reasonable sized solder points for data lines, all four devices removed via hot air are very very tiny SMD devices. SHT40 SMD pads are too tiny to solder wires to but +3V and GND have nice plated through holes near the processor. Note colours on green/yellow data lines end-to-end, must not be reversed, the only real challenge is soldering those onto the old SMD resistor pads. Added back two 10K pull up resistors and a 100nf decoupling capacitor at the external probe connector, per the SHT40 data sheet, can’t read old values. Drilled one extra air vent hole 1/16in and enlarged the adjacent one in the case to install the 2.54mm 4 pin connector, solder inside holds the connector in place, the external probe connector is crimped – E size bare type. Wire is flexible 30 AWG stranded. All the bits are available on Amazon except the SHT40 probes which are $3ea direct from AE China, 1 out of 10 was DOA. Been running seven 3M long probes for over a week with SmartThings hub, stable so far and temps match unmodified sensors as expected. Have not attempted to immerse one of those cheap probes in water, it is vented for humidity measurement, very skeptical about the waterproof claim, would seal the vent with waterproof/glue type heat shrink tubing as a minimum.
Bruce –
Voilà : il est possible de proposer un article sans fioritures, à un prix correct, et qui s’intègre dans le réseau ZigBee facilement.L’étalonnage d’usine est très correct, ce qui est également très appréciable.
Pete S. –
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.