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Sonoff Temperature - Humidity Sensor Battery ZigBee USB
Temperature & Humidity Sensors

Sonoff Temperature - Humidity Sensor Battery ZigBee USB

Key features:

  • Sensirion accuracy ±0.2 °C
  • Dew Point & VPD measurement
  • Zigbee 3.0 connectivity
  • Battery life up to 2 years

Monitor the temperature, humidity, and VPD of your space with absolute precision using the smart SONOFF AirGuard TH Lite sensor.

See full description

Top specs

  • Connection Method

    Wireless

    Capability for wireless transfer of measurement data and communication with other devices.

  • Connectivity

    The wireless communication protocol supported by the sensor for connecting to a device and transferring data.

  • Plug

    The sensor's plug for wired connection with other devices or meters.
  • Battery

  • Compatible Battery

    The type of compatible battery that powers the sensor
  • See all

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Description

Description

At a glance

  • High-precision Sensirion sensor (±0.2 °C & ±2% RH)
  • Dew point (Dew Point) and VPD calculation
  • Compatibility with Zigbee 3.0, eWeLink, Home Assistant & SmartThings
  • Data update every 5 seconds
  • Battery life up to 2 years with 2x AAA
  • Measurement history and export to CSV file

Absolute Accuracy and Specialized Indicators

Thanks to the integrated Sensirion sensor, you get reliable real-time temperature and humidity measurements. In addition, it automatically calculates the dew point and VPD (Vapor Pressure Deficit), offering the ideal solution for climate control, mold prevention, and optimal plant care.

Flexible Zigbee 3.0 Connectivity

It works seamlessly with the SONOFF ecosystem (ZBBridge, iHost, NSPanel Pro) as well as with popular platforms such as Home Assistant (ZHA/Zigbee2MQTT), SmartThings, and Alexa. This makes it easy to create smart automations that activate heating devices or dehumidifiers based on the thresholds you set.

Easy Installation and Long Battery Life

Powered by two AAA batteries, you can enjoy up to 2 years of continuous operation without cables. Easily place it on any flat surface, on the wall, or hang it with the special strap to monitor the conditions of each room.

Specifications

  • Model: SNZB-02B (AirGuard TH Lite)
  • Connection Protocol: Zigbee 3.0 (IEEE 802.15.4)
  • Temperature Accuracy: ±0.2 °C
  • Humidity Accuracy: ±2% RH
  • Operating Temperature Range: -20 °C to +60 °C
  • Operating Humidity Range: 5–95% RH (non-condensing)
  • Power Supply: 2x AAA batteries (3.0V)
  • Battery Life: Up to 2 years
  • Dimensions: 66.3 x 27.8 x 20 mm
  • Weight: 43 g (with batteries)
  • Material: PC plastic (White)
  • Certifications: CE, FCC, RoHS

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Specifications

Type
Temperature, Humidity
Air Quality
No

Air Quality

Includes sensors that, in addition to temperature and humidity, also monitor air quality.
Connection Method
Wireless

Connection Method

Wireless
Capability for wireless transfer of measurement data and communication with other devices.
Cable Type
No

Cable Type

For wired data transfer or power supply in cases where the cable also includes a corresponding plug (e.g. USB)
Battery
Yes

Additional Features

Battery Type
AAA

Battery Type

The type of compatible battery that powers the sensor
Plug
USB

Plug

The sensor's plug for wired connection with other devices or meters.

Smart Attributes

Connectivity
ZigBee

Connectivity

The wireless communication protocol supported by the sensor for connecting to a device and transferring data.
Smart Ecosystem
SmartThings, Alexa

Smart Ecosystem

The network of smart devices to which the sensor can be connected. Smart devices within the same ecosystem as the sensor can communicate and connect with each other more easily, enabling automations and unified control.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Description & Specifications

At a glance

  • High-precision Sensirion sensor (±0.2 °C & ±2% RH)
  • Dew point (Dew Point) and VPD calculation
  • Compatibility with Zigbee 3.0, eWeLink, Home Assistant & SmartThings
  • Data update every 5 seconds
  • Battery life up to 2 years with 2x AAA
  • Measurement history and export to CSV file

Absolute Accuracy and Specialized Indicators

Thanks to the integrated Sensirion sensor, you get reliable real-time temperature and humidity measurements. In addition, it automatically calculates the dew point and VPD (Vapor Pressure Deficit), offering the ideal solution for climate control, mold prevention, and optimal plant care.

Flexible Zigbee 3.0 Connectivity

It works seamlessly with the SONOFF ecosystem (ZBBridge, iHost, NSPanel Pro) as well as with popular platforms such as Home Assistant (ZHA/Zigbee2MQTT), SmartThings, and Alexa. This makes it easy to create smart automations that activate heating devices or dehumidifiers based on the thresholds you set.

Easy Installation and Long Battery Life

Powered by two AAA batteries, you can enjoy up to 2 years of continuous operation without cables. Easily place it on any flat surface, on the wall, or hang it with the special strap to monitor the conditions of each room.

Specifications

  • Model: SNZB-02B (AirGuard TH Lite)
  • Connection Protocol: Zigbee 3.0 (IEEE 802.15.4)
  • Temperature Accuracy: ±0.2 °C
  • Humidity Accuracy: ±2% RH
  • Operating Temperature Range: -20 °C to +60 °C
  • Operating Humidity Range: 5–95% RH (non-condensing)
  • Power Supply: 2x AAA batteries (3.0V)
  • Battery Life: Up to 2 years
  • Dimensions: 66.3 x 27.8 x 20 mm
  • Weight: 43 g (with batteries)
  • Material: PC plastic (White)
  • Certifications: CE, FCC, RoHS

Manufacturer

Manufacturer Details

Warnings & Safety Information

Specifications

Type
Temperature, Humidity
Air Quality
No

Air Quality

Includes sensors that, in addition to temperature and humidity, also monitor air quality.
Connection Method
Wireless

Connection Method

Wireless
Capability for wireless transfer of measurement data and communication with other devices.
Cable Type
No

Cable Type

For wired data transfer or power supply in cases where the cable also includes a corresponding plug (e.g. USB)
Battery
Yes

Additional Features

Battery Type
AAA

Battery Type

The type of compatible battery that powers the sensor
Plug
USB

Plug

The sensor's plug for wired connection with other devices or meters.

Smart Attributes

Connectivity
ZigBee

Connectivity

The wireless communication protocol supported by the sensor for connecting to a device and transferring data.
Smart Ecosystem
SmartThings, Alexa

Smart Ecosystem

The network of smart devices to which the sensor can be connected. Smart devices within the same ecosystem as the sensor can communicate and connect with each other more easily, enabling automations and unified control.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

10,45 €
14,00 €   shipping cost