Temperature & Humidity Sensors · Head to head

Sonoff SNZB-02M AirGuard TH Pressure Sensor vs SwitchBot Meter Plus

Full Smart Temperature/Humidity Sensors comparison in 2026

Updated November 2026
Data from the official Sonoff and SwitchBot sites.
2026 verdict
The cheaper of these two also happens to be the better reviewed.
SwitchBot Meter Plus
Winner
SwitchBot Meter Plus
$15.29$17.9915% OFF
Buy on Amazon USA
The SwitchBot Meter Plus edges out the Sonoff SNZB-02M AirGuard TH Pressure Sensor on price, owner rating, standalone Bluetooth connectivity and its 3 inch display, none of which the Sonoff can answer without a Zigbee hub and a phone or dashboard for every reading. The Sonoff SNZB-02M AirGuard TH Pressure Sensor holds its ground on three rows: a 2 year warranty against 1, roughly 2 years of battery life against about 1, and an atmospheric pressure sensor the SwitchBot Meter Plus does not carry. Integrations and alerts are a tie, with both reaching the same platforms through their own hub. For a sensor you read at a glance with no hub required, the SwitchBot Meter Plus is the answer; for a Zigbee sensor that logs pressure and runs longer between batteries, pick the Sonoff SNZB-02M AirGuard TH Pressure Sensor.
Works with
Connectivity
vs
Winner
SwitchBot Meter Plus
SwitchBot
#7 Best Seller in Temperature & Humidity Sensors

SwitchBot Meter Plus

15% OFF
Prime exclusive deal
$15.29
$17.99
Buy on Amazon USA

Also sold in packs

  • Pack of 210% OFF$26.99$29.99$13.49 per unitYou save $3.59Buy
  • Pack of 321% OFF£26.99£33.99£9.00 per unitYou save £0.31Buy
Works with
Connectivity
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The biggest differences

Where these two are furthest apart, and by how much.

  • Warranty2×Sonoff SNZB-02M AirGuard TH Pressure Sensor2 years vs 1 year
  • Battery Life2×Sonoff SNZB-02M AirGuard TH Pressure Sensor2 years vs 1 year
FeatureSonoff SNZB-02M AirGuard TH Pressure SensorSwitchBot Meter PlusWinner
Price$19.90$15.29SwitchBot Meter Plus
Rating3.84.5SwitchBot Meter Plus
Warranty2 years1 yearSonoff SNZB-02M AirGuard TH Pressure Sensor
Battery Life2 years1 yearSonoff SNZB-02M AirGuard TH Pressure Sensor
ConnectivityZigbee2.4 GHz WiFi, BluetoothSwitchBot Meter Plus
ScreenNOYESSwitchBot Meter Plus
SensorsTemperature, Humidity, Atmospheric PressureTemperature, HumiditySonoff SNZB-02M AirGuard TH Pressure Sensor
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
AlertsTemperature Alerts, Humidity Alerts, Low Battery AlertsTemperature Alerts, Humidity AlertsTie
Local ControlYESYESTie

What the differences mean

Extra sensor

The Sonoff SNZB-02M AirGuard TH Pressure Sensor adds barometric pressure. The SwitchBot Meter Plus measures temperature and humidity only.

Display

The SwitchBot Meter Plus has a 3 inch LCD. The Sonoff SNZB-02M AirGuard TH Pressure Sensor has no screen at all.

Battery life and warranty

The Sonoff SNZB-02M AirGuard TH Pressure Sensor is rated for about 2 years of battery life with a 2 year warranty. The SwitchBot Meter Plus is rated for roughly 1 year with a 1 year warranty.

Connectivity

The SwitchBot Meter Plus works standalone over Bluetooth, with a SwitchBot Hub adding Wi-Fi and Matter. The Sonoff SNZB-02M AirGuard TH Pressure Sensor needs a Zigbee hub for any connection at all.

Price

The SwitchBot Meter Plus is typically the cheaper of the two and carries the better owner rating.

Which one to buy if

Winner
SwitchBot

SwitchBot Meter Plus

15% OFF
Prime exclusive deal
$15.29
$17.99
Buy on Amazon USA
  • + Price: $15.29
  • + Rating: 4.5
  • + Connectivity: 2.4 GHz WiFi, Bluetooth
  • - Warranty: 1 year vs 2 years
  • - Battery Life: 1 year vs 2 years

What owners say

Owners of both describe accurate readings and an easy initial pairing. Sonoff SNZB-02M AirGuard TH Pressure Sensor owners value the extra barometric reading for dew point and VPD in a greenhouse or cellar automation and like the solid build and magnetic mount, but a few report the pressure value missing on a SmartThings hub and note the uncommon CR2477 battery. SwitchBot Meter Plus owners who own several units say they read within a fraction of a degree of each other, and praise the large 3 inch display and how quickly it sets up, though a minority of long-term owners report the app's Bluetooth-synced offset drifting after months of use.

Frequently Asked Questions

Which is better overall: Sonoff SNZB-02M AirGuard TH Pressure Sensor or SwitchBot Meter Plus?

The SwitchBot Meter Plus wins overall on price, screen, connectivity and owner feedback. The Sonoff SNZB-02M AirGuard TH Pressure Sensor wins on warranty, battery life and its pressure sensor.

What is the biggest difference between the Sonoff SNZB-02M AirGuard TH Pressure Sensor and the SwitchBot Meter Plus?

The SwitchBot Meter Plus has a 3 inch LCD and works over Bluetooth, while the Sonoff SNZB-02M AirGuard TH Pressure Sensor has no screen, needs a Zigbee hub, and adds a barometric pressure reading instead.

Does the SwitchBot Meter Plus need a hub?

No, it works standalone over Bluetooth for local readings. A SwitchBot Hub is only needed for Wi-Fi, remote alerts and Matter.

Which lasts longer on a battery, and which has the longer warranty?

The Sonoff SNZB-02M AirGuard TH Pressure Sensor, rated for about 2 years on its CR2477 cell with a 2 year warranty, against roughly 1 year and a 1 year warranty on the SwitchBot Meter Plus.

Who should buy the Sonoff SNZB-02M AirGuard TH Pressure Sensor?

Buyers on a Zigbee network who want the pressure reading and the longer warranty and battery life.

Who should buy the SwitchBot Meter Plus?

Buyers who want an affordable sensor with a readable screen that works without a hub.

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