Updated September 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
In this 2026 Sonoff SNZB-02DR2 AirGuard TH vs Shelly BLU H&T ZB comparison, Sonoff SNZB-02DR2 AirGuard TH comes out ahead thanks to price, screen, and integrations.
It builds its lead on price, screen, and integrations, then backs it up with a stronger showing on alerts. Shelly BLU H&T ZB is still relevant if you care most about its specific feature mix, but Sonoff SNZB-02DR2 AirGuard TH is the stronger recommendation overall. In practical terms, Sonoff SNZB-02DR2 AirGuard TH is the easier product to recommend.
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| Feature | Shelly BLU H&T ZB | Sonoff SNZB-02DR2 AirGuard TH | Winner |
|---|---|---|---|
| Price | $22.99 | $14.90 | Sonoff SNZB-02DR2 AirGuard TH |
| Screen | NO | YES | Sonoff SNZB-02DR2 AirGuard TH |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Sonoff SNZB-02DR2 AirGuard TH |
| Alerts | Temperature Alerts, Humidity Alerts | Temperature Alerts, Humidity Alerts, Low Battery Alerts | Sonoff SNZB-02DR2 AirGuard TH |
| Rating | 4.4 | 4.4 | Tie |
| Warranty | 2 years | 2 years | Tie |
| Connectivity | Bluetooth, Zigbee | Bluetooth, Zigbee | Tie |
| Sensors | Temperature, Humidity | Temperature, Humidity | Tie |
- - Price: $22.99 vs $14.90
- - Screen: NO vs YES
Winner
- + Price: $14.90
- + Screen: YES
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
Frequently Asked Questions
Which is better overall: Shelly BLU H&T ZB or Sonoff SNZB-02DR2 AirGuard TH?
Sonoff SNZB-02DR2 AirGuard TH has the stronger overall profile in this comparison, especially for price, screen, and integrations.
What is the biggest difference between Shelly BLU H&T ZB and Sonoff SNZB-02DR2 AirGuard TH?
Price is one of the clearest differences: Shelly BLU H&T ZB lists $22.99, while Sonoff SNZB-02DR2 AirGuard TH lists $14.90.
Which one looks better on price?
Shelly BLU H&T ZB is listed at $22.99, while Sonoff SNZB-02DR2 AirGuard TH is listed at $14.90. Sonoff SNZB-02DR2 AirGuard TH (better spec).
Who should buy Shelly BLU H&T ZB?
Choose Shelly BLU H&T ZB if your priority is its specific strengths and that matters more than price.
Who should buy Sonoff SNZB-02DR2 AirGuard TH?
Choose Sonoff SNZB-02DR2 AirGuard TH if your priority is price and screen and that matters more than the competing advantages.
Full comparison table
Compare all 33 Temperature & Humidity Sensors side by side
You are looking at two of them. The full table lines up all Temperature & Humidity Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 33 Temperature & Humidity Sensors
- 43 specs compared
- 39 filters
YoLinkSmart Wireless Thermometer Hygrometer
5% OFF$16.14$15.33
GoogleNest Temperature Sensor
10% OFF$39.00$34.99
EcobeeSmartSensor
$98.15
SwitchBotMeter Pro
$19.99
SwitchBotMeter Plus
15% OFF$17.99$15.29
GoveeHygrometer Thermometer H5104
$13.99
AeotecMultipurpose Sensor
$38.99
X-SenseSmart WiFi Indoor Thermometer
23% OFF$14.99$11.59
X-SenseSTH0B Smart Thermometer Hygrometer
6% OFF$12.34$11.59
SonoffSNZB-02M AirGuard TH Pressure Sensor
10% OFF$19.90$17.91
GoogleNest Temperature Sensor (2nd gen)
$39.98
SonoffSNZB-02DR2 AirGuard TH
$14.90
SonoffSNZB-02WD
$19.90- Shelly
BLU H&T ZB
$22.99 
ShellyBLU H&T Display ZB
$25.99
SensiEmerson Room Sensor
$45.88
SwitchBotMeter
$13.99
SwitchBotIndoor/Outdoor Thermo-Hygrometer
15% OFF$14.99$12.74
AqaraTemperature and Humidity Sensor
$19.98
SonoffLCD Smart Temperature Humidity Sensor
$15.90
CamerasShellyCamera
DisplaysShellyWall Display X1i
DisplaysShellyWall Display XL
4.2(59)$349.99
DisplaysShellyWall Display
4.4(434)18% OFF€147.56€121.33
Door & Window SensorsShellyBLU Door/Window ZB
4.6(23)$22.99
Energy MonitorsShelly3EM-63W Gen3
4.6(137)
Energy MonitorsShellyEM Gen3
4.6(256)$69.99
Energy MonitorsShellyEM Gen4
Energy MonitorsShellyEM Mini Gen4
4.5(108)$24.99
Energy MonitorsShellyPro 3EM 3CT63
4.4(315)$150.99
Energy MonitorsShellyPro 3EM-400
4.2(19)$329.99
Energy MonitorsShellyPro 3EM v2
4.6(55)$154.99
Energy MonitorsShellyPro EM-50
4.6(939)$119.99
Gas DetectorsShellyGAS (CNG)
4.2(45)
Gas DetectorsShellyGAS (LPG)
LED BulbsShellyMulticolor Bulb E27 Gen3
4.3(28)
Motion SensorsShellyBLU Motion ZB
4.4(21)$26.99
Motion SensorsShellyBlu Motion
4.0(1,017)$25.99
PlugsShellyPlug M Gen3
4.5(757)$14.99
PlugsShellySmart Plug UL
4.1(161)$24.99
Air Quality MonitorsSonoffSAWF-07P Air Quality Monitor
3.7(178)$39.90
Air Quality MonitorsSonoffSAWF-08P Air Quality Monitor
4.2(162)$49.90
CamerasSonoffCAM GlassView
5.0(1)$34.90
CamerasSonoffCam Slim Gen2
4.4(170)$19.90
CamerasSonoffGK-200MP2-B
4.0(149)30% OFF$9.99$6.99
DisplaysSonoffNSPanel Pro Gen2
3.3(10)€149.90
DisplaysSonoffNSPanel Pro
4.0(70)$129.90
DonglesSonoffDongle Lite MG21
4.5(432)$24.90
DonglesSonoffDongle Max
4.3(590)
DonglesSonoffDongle Plus MG24
4.7(664)$35.90
DonglesSonoffDongle Plus PP10
4.6(78)$35.90
DonglesSonoffDongle-PZG23
4.6(171)10% OFF$39.90$35.91
DonglesSonoffZBDongle-E
4.6(3,722)$24.90
DonglesSonoffZBDongle-P
4.5(5,667)15% OFF$39.99$34.07
Door & Window SensorsSonoffDW2-WIFI
3.8(1,062)$12.23
Door & Window SensorsSonoffSNZB-04 ZigBee Wireless Door/Window Sensor
3.8(102)$17.99
Door & Window SensorsSonoffSNZB-04P ZigBee Door/Window Sensor
4.0(13)$18.99
Door & Window SensorsSonoffSenseGuard DW Gen2
4.4(182)
Energy MonitorsSonoffMINI PM Matter Over WiFi Power Meter (Non-Switch)
$15.90
Energy MonitorsSonoffMINI PM Zigbee Power Meter (Non-Switch)
4.1(82)$15.90