12 Best-Selling Zigbee Temperature Sensors Tested and Compared
Pangram verdict · v3.3
We believe that this text is a mix of AI and human-written content.
AI likelihood · overall
MixedArticle text · 1,419 words · 7 segments analyzed
UPDATED 14.08.2026: Added low-temperature benchmarks in a fridge.Finding the best Zigbee temperature and humidity sensors is not something an individual review can really answer, so I decided to switch things up and compare devices head to head instead of testing them one by one. I recently did this for some cheap AliExpress Zigbee door and window sensors and Zigbee smart buttons, so simple temperature and humidity sensors are up next.I picked up 12 of the best-selling Zigbee temperature and humidity sensors I could find online, sourced mainly from AliExpress.
The lineup covers Aqara, Sonoff, Tuya, Thirdreality, Zemismart, and Moes, so this is not a one-brand roundup, but rather real look at what people are actually using in their smart homes.None of these sensors have displays, all of them run Zigbee, and all of them are battery-powered. What separates them from each other comes down to accuracy, measurement range, build quality, form factor, battery type, and how each one holds up against a calibrated reference sensor, which is exactly what the rest of this article breaks down.Testing MethodologyI installed all twelve sensors in my office, right next to a calibrated sensor I decided to use as a base for accuracy.
My benchmark device is a Xiaomi Miaomiaoce MHO-C401 flashed with the latest pvvx custom firmware and communicating over Bluetooth Low Energy with Home Assistant.To get an accurate base for benchmarks, I decided to calibrate it against a lab-certified thermometer at a friend’s butcher shop, as weirdly as that sounds.
His particular thermometer gets checked and calibrated by the state on a schedule (every 3 months) because it sits inside a commercial meat refrigerator and it is required by law. After calibration, my MHO-C401 needed an offset of minus 0.5°C and plus 4% humidity to match the reference reading exactly.It is worth clarifying from the start that my setup does not represent typical room comfort conditions, since the calibration was done at a much lower temperature, around 4°C. Sensors do not always respond in a perfectly straight line across a wide temperature range, so this fixed point is not a guarantee of the exact same accuracy at room temperature. What it does give me is a consistent, repeatable anchor to measure every Zigbee sensor against under identical conditions, which is exactly what this comparison needs.
In the end, trends matter more than single datapoints, since you can always recalibrate a sensor in Home Assistant.I tested all sensors with Zigbee2MQTT version 2.12.1-dev and the SMLight SLZB-06MG24 PoE coordinator. The SLZB-Ultima I normally use for these comparison articles is currently operating as a Thread Border Router, so this is a brand new Zigbee network I created just for this article. Each sensor sits at about 3.5 meters from the coordinator and there are no other network devices paired.Models, Brands and SpecificationsThese twelve sensors come from several brands, Aqara, Sonoff, Tuya, Thirdreality, Zemismart and Moes, and every single one costs under 15 dollars on AliExpress with one exception: Thirdreality. The Temperature and Humidity Sensor Lite by Thirdreality costs $19.99 and is not sold on AliExpress at all, but I decided to include it since a lot of you already have it and asked me to do so.I gave each one a color and a code name again to make them easier to track, since most of the actual model numbers are gibberish. Hover over the dot next to any device name and the real brand and model number will pop up.Zigbee Temperature and Humidity SensorsFurthermore, Aqara and Sonoff are not AliExpress-only brands, but they are available there and fit my criteria of being priced under $15. I picked the best sellers from each brand rather than obscure listings, so what you see here is what most people actually end up buying.Here are the 12 sensors, what they cost me and where you can get them:ImgCode NameWhite LabelZigbee ModelPriceAliExpressAmazonTony ●AqaraT&H SensorAqaraWSDCGQ11LMFrom$14.89AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLCarmela ●SONOFFAirGuard TH LiteSONOFFSNZB-02BFrom$9.23AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLPaulie ●SONOFFT&H SensorSONOFFSNZB-02PFrom$13.08AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLRichie ●ThirdRealityT&H Sensor LiteThirdReality3RTHS0224ZFrom$19.99AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLSilvio ●ZemismartZM-ZXZTHTS0201_TZ3000_nau60otvFrom$14.48AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLChris ●MoesZSS-S01-THTS0201_TZE3000_f2bw0b6kFrom$6.65AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLJunior ●TuyaTH09ZTS0201_TZ3000_yupc0pb7From$11.35AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLMelfi ●TuyaTH01TH01ZbeaconFrom$4.60AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLMeadow ●TuyaIH-K009TS0201_TZ3000_dowj6gyiFrom$8.42AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLLivia ●TuyaZTH02TS0601_TZE200_9yapgbuvFrom$9.12AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLAdriana ●eWeLinkTH03YZCK-TLSR8656-SS5-01eWeLinkFrom$5.34AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLFurio ●TuyaUZ-01TTS0201WingFrom$5.49AliExpressAliExpress 2Amazon US ● Amazon UKAmazon DE ● Amazon NLNOTE: AliExpress prices are highly region dependent, so expect differences.A lot of these Tuya sensors can be found under different white-label names sold by various brands and retailers. This is nothing new and is standard practice, the same Tuya device gets rebadged and sold under multiple model names all the time. I listed the labels and Zigbee models exactly as I found them on the packaging and Zigbee2MQTT. Whatever the ID ends up being on your unit, it will work with Zigbee2MQTT in 99.9% of cases.PRO TIP: If you do opt for the Aqara Temperature and Humidity Sensor, get the T1 WSDCGQ12LM version instead of the older one I tested here. Both are very similar with minor differences, but the T1 brings improvements in connectivity and network stability.Technical SpecificationThe table below lists every spec as reported by the manufacturer or pulled directly from the Zigbee2MQTT device page. Some of these, like reporting interval, I had to figure out myself by analyzing Z2M debug logs for a lot of the sensors. Datasheets were either wrong or simply did not all specs listed.Code NameModelBatteryDimensionsRangeAccuracyResolutionReportingTony ●AqaraWSDCGQ11LM1×CR20322 years36×36×9mm-20°C to 50°C0 to 100% RH±0.3°C±3% RH0.01°C0.01%60min or±0.5°C / 6% RHCarmela ●SONOFFSNZB-02B2×AAA2 years66.3×28×20mm-20°C to 60°C5 to 95% RH±0.2°C±2% RH0.1°C0.1%60min or±0.2°C / 2% RHPaulie ●SONOFFSNZB-02P1×CR24772 years45×45×17.7mm-10°C to 60°C5 to 95% RH±0.2°C±2% RH0.1°C0.1%60min or±0.2°C / 2% RHRichie ●ThirdReality3RTHS0224Z2×AAA2 years55.6×56×12mm-15°C to 50°C0 to 100%±0.3°C±2%0.01°C0.1%15min or±0.5°C / 3% RHSilvio ●ZemismartZM-ZXZTH1×CR20326 months38×38×12mm-10°C to 50°C0 to 95% RH±0.3°C±3% RH0.01°C0.01%30min or±0.5°C / 3% RHChris ●MoesZSS-S01-TH1×CR20321 year40×26×13mm-10°C to 50°C0 to 99% RH±0.3°C±3% RH0.01°C0.01%60min or±0.3°C / 1% RHJunior ●TuyaTH09Z2×AAA1 year73×27×23mm-15°C to 60°C0 to 99% RH±0.6°C±6% RH0.01°C0.1%5min or±0.1°C / 0.1% RHMelfi ●TuyaTH012×AAA1 year70×25×20mm-10°C to 55°C0 to 99% RH±1°C±5% RH0.01°C0.01%60min or±0.2°C / 1% RHMeadow ●TuyaIH-K0092×AAA1 year70×24×20mm-10°C to 55°C10 to 90% RH±0.3°C±3% RH0.01°C0.01%10min or±0.1°C / 0.3% RHLivia ●TuyaZTH021×CR20321 year56×26.5×13mm-20°C to 60°C0 to 100% RH±1°C±5% RH0.1°C1%60min or±0.5°C / 1% RHAdriana ●eWeLinkTH03YZ1×CR24502 years⌀37×11.6mm-10°C to 50°C0 to 95% RH±0.5°C±3% RH0.1°C0.1%60min or±0.2°C / 1% RHFurio ●TuyaUZ-01T1×CR20451 year⌀40×13mm-9.9°C to 60°C0 to 99% RH±1°C±1% RH0.1°C1%60min or±0.5°C / 1% RHOn paper, most of these sensors are similar in detection range, measuring accuracy and reporting interval. In practice however, there are differences in the way they operate and report over Zigbee. Battery type and form factor are also an important preliminary differentiator. Some people prefer using AAAs or even rechargeable ones, while others like the smaller footprint of coin cell batteries.Size and Form FactorTony ● is the thinnest and smallest sensor in this entire group at 36 by 36 by 9mm. Its footprint is small enough that it blends in wherever you stick it. Adriana ●, the eWeLink TH03YZ, is a close second. At a diameter of 37mm with 11.6mm thickness, it feels more like a tiny smart button. Chris ● also has a shape that I like. It’s small, rounded, and doesn’t have anything printed on the front.None of the AAA-powered sensors impressed me on shape.
Junior ●, Melfi ●, and Meadow ● all carry the bulk that comes with two AAA cells, ranging from 70 to 73mm long. If I had to pick a favorite among the AAA group, it would be Carmela ●, the Sonoff SNZB-02B, which keeps a slimmer 66.3 by 27.8 by 20mm profile despite the battery compartment.
Junior ● and Carmela ● are the only ones that ship with a string, so you can hand them and easily move them around.The two round sensors in the group, Adriana ● and Furio ●, are also quite compact for what they are, at 37mm and 40mm in diameter. Richie ●, the Thirdreality 3RTHS0224Z, is the tallest and widest of all sensors. It’s a bit thinner than all other AAA sensors, but it’s still quite large in comparison.Build Quality and Weather ResistanceBuild quality is quite good all around, and picking a favorite here really comes down to personal preference rather than one sensor being noticeably better made than the rest. Nothing rattles, shakes or feels flimsy when you shake the housing in either of them.