Indoor Thermometers & Hygrometers

Sonoff Digital Thermometer & Hygrometer for Indoor Use Code: SNZB-02D

Key features:

  • Zigbee 3.0 connection protocol
  • Multiple mounting options
  • Large, easy-to-read display
  • Remote control
  • Dimensions: 62.5 × 59.5mm
  • Compatible App: eWeLink
See full description

Description

Description

Remote Real-Time Monitoring

Monitor temperature and humidity in real time via the app or directly from the built-in display. The wireless connection offers reliable coverage of up to 120 meters (in open space), allowing you to stay informed wherever you are.

High Accuracy & Updates Every 5 Seconds

The Swiss-made sensor guarantees exceptionally accurate measurements with a precision of ±0.2°C for temperature and ±2% RH for humidity. The data is updated every 5 seconds, offering continuous and reliable information.

Large LCD Screen

The easy-to-read LCD screen clearly displays temperature and humidity in real time. Dynamically changing icons instantly inform you about room conditions and battery status at a glance.

Instant Notifications via App

Receive notifications on your mobile when temperature or humidity levels exceed the comfort limits you have set. This way, you can take immediate action to adjust your environment's conditions.

Manufacturer

See full description

Specifications

Specifications

Product Number
SNZB-02D

Dimensions

Type
Thermometer, Hygrometer
Usage
Interior
Mounting Type
Wall Mounted, Tabletop
Mode
Digital
Colour
White

Features

Illuminated Display
-
Comfort Icons
-
Connectivity
Zigbee

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

Reviews (103)

Reviews

  1. 81
  2. 12
  3. 7
  4. 2
  5. 1
Review this product
  • Accuracy in measurements
  • Size convenience
  • Number of functions
  • Easy screen readability
  • Construction quality
  • Value for money

Reviews by our members

  • nice good measurement

    Translated from Greek ·
    Did you find this review helpful?
  • anx83

    Verified purchase

    Perfect for its simple use. Checked accurate measurements for both temperature and humidity levels, with minimal deviation, and continuous battery indicator to show when it needs changing. The battery is normally included in the package inside the product, you just need to pull out the plastic tab from the back. It does not have lighting, but in most conditions the screen is perfectly visible anyway. Easy placement either on the wall, in the fridge since it has a magnet, or on a piece of furniture as it can also stand on its own.

    Translated from Greek ·
    Did you find this review helpful?
  • jsismanidis
    4
    1 out of 1 members found this review helpful
    Store representative

    Verified purchase

    eWeLink does not (yet) recognize it as a sensor like the previous SNZB-02, which creates some issues with automations and scenes. Other than that, reliable and functional.

    Translated from Greek ·
    Did you find this review helpful?
  • Pstath
    5
    7 out of 7 members found this review helpful

    Verified purchase

    As a hygrometer and thermometer, it is a beast. I will soon get the ZigBee bridge as well, and I will return, but I am expecting miracles. I am very satisfied with Sonoff. I have many of their devices..

    Update 8/7/25: I got the zb bridge, it's worth it and then some! I have no words to describe how good a purchase this is! Bravo to Sonoff for helping us make our homes smart with relatively little money.

    Translated from Greek ·
    Did you find this review helpful?
  • Mevento
    5
    7 out of 7 members found this review helpful

    Verified purchase

    It is really very beautiful with a good screen. It has a very clever way of mounting on the wall so you can easily remove it to change the battery or if you want to temporarily take it somewhere else, and it is also magnetic if you want.
    To the friend who said it comes without a battery, he is wrong; it comes normally with a battery inside.
    Be careful, it connects ONLY with an adapter or some ZigBee hub; it is NOT Wi-Fi

    Translated from Greek ·
    Did you find this review helpful?
  • depa_mono
    5
    1 out of 6 members found this review helpful

    Verified purchase

    Attention! It does not have a battery inside. I connected it to home assistant, all good. It will need a zigbee receiver

    Translated from Greek ·
    Did you find this review helpful?
  • Μιχάλης88
    2
    0 out of 14 members found this review helpful

    Verified purchase

    It does not connect to wifi! I did everything!! Obviously, they want us to buy the zigbee bridge and connect it there first, which means an extra cost of about 20€!

    Translated from Greek ·
    Did you find this review helpful?
  • stelioskos
    4
    3 out of 4 members found this review helpful

    Verified purchase

    This autonomous temperature and humidity sensor works perfectly. When connected to a Zigbee hub for remote control, it experiences continuous disconnections.

    Translated from Greek ·
    Did you find this review helpful?
  • theokalam
    5
    5 out of 5 members found this review helpful

    Verified purchase

    They do what they are supposed to without disconnections. I have 6 of these and in 5 months only 2 of them experienced disconnection twice. The accuracy of the temperature and the deviation that all 6 thermometers show between each other is minimal, around 0.2 degrees Celsius. Very reliable.

    Translated from Greek ·
    Did you find this review helpful?
  • Isaak_Kantiltziadis
    1
    4 out of 14 members found this review helpful

    Verified purchase

    Communication with the Wi-Fi router is constantly lost and requires a restart. Also, I use it as a simple thermometer

    Translated from Greek ·
    Did you find this review helpful?
  • it drains the battery quickly compared to similar ones

    Translated from Greek ·
    Did you find this review helpful?
  • Good and at a reasonable price. Easily integrates into Home Assistant

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Fairly accurate readings, at the level of SNZB-02P.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful

    Verified purchase

    It works just fine. You can calibrate it from the app.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    The only negative is that it arrived with an almost empty battery

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful

    Verified purchase

    Verified purchase.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    3 out of 5 members found this review helpful

    Verified purchase

    From temperature/humidity measurement, it's just fine. Be careful, it only works with Sonoff gateways

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful

    Verified purchase

    The most user-friendly and very accurate in its measurements.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    3 out of 5 members found this review helpful

    Verified purchase

    Quality and does what it promises. Attention, it connects with Zigbee Pro hub

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • nice good measurement

    Translated from Greek ·
    0
  • Perfect for its simple use. Checked accurate measurements for both temperature and humidity levels, with minimal deviation, and continuous battery indicator to show when it needs changing. The battery is normally included in the package inside the product, you just need to pull out the plastic tab from the back. It does not have lighting, but in most conditions the screen is perfectly visible anyway. Easy placement either on the wall, in the fridge since it has a magnet, or on a piece of furniture as it can also stand on its own.

    Translated from Greek ·
    0
  • eWeLink does not (yet) recognize it as a sensor like the previous SNZB-02, which creates some issues with automations and scenes. Other than that, reliable and functional.

    Translated from Greek ·
    1
  • As a hygrometer and thermometer, it is a beast. I will soon get the ZigBee bridge as well, and I will return, but I am expecting miracles. I am very satisfied with Sonoff. I have many of their devices..

    Update 8/7/25: I got the zb bridge, it's worth it and then some! I have no words to describe how good a purchase this is! Bravo to Sonoff for helping us make our homes smart with relatively little money.

    Translated from Greek ·
    7
  • See all

Description & Specifications

Remote Real-Time Monitoring

Monitor temperature and humidity in real time via the app or directly from the built-in display. The wireless connection offers reliable coverage of up to 120 meters (in open space), allowing you to stay informed wherever you are.

High Accuracy & Updates Every 5 Seconds

The Swiss-made sensor guarantees exceptionally accurate measurements with a precision of ±0.2°C for temperature and ±2% RH for humidity. The data is updated every 5 seconds, offering continuous and reliable information.

Large LCD Screen

The easy-to-read LCD screen clearly displays temperature and humidity in real time. Dynamically changing icons instantly inform you about room conditions and battery status at a glance.

Instant Notifications via App

Receive notifications on your mobile when temperature or humidity levels exceed the comfort limits you have set. This way, you can take immediate action to adjust your environment's conditions.

Manufacturer

Product Number
SNZB-02D

Dimensions

Type
Thermometer, Hygrometer
Usage
Interior
Mounting Type
Wall Mounted, Tabletop
Mode
Digital
Colour
White

Features

Illuminated Display
-
Comfort Icons
-
Connectivity
Zigbee

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.

Reviews (103)

  1. 81
  2. 12
  3. 7
  4. 2
  5. 1
Review this product
  • Accuracy in measurements
  • Size convenience
  • Number of functions
  • Easy screen readability
  • Construction quality
  • Value for money

Reviews by our members

  • nice good measurement

    Translated from Greek ·
    Did you find this review helpful?
  • anx83

    Verified purchase

    Perfect for its simple use. Checked accurate measurements for both temperature and humidity levels, with minimal deviation, and continuous battery indicator to show when it needs changing. The battery is normally included in the package inside the product, you just need to pull out the plastic tab from the back. It does not have lighting, but in most conditions the screen is perfectly visible anyway. Easy placement either on the wall, in the fridge since it has a magnet, or on a piece of furniture as it can also stand on its own.

    Translated from Greek ·
    Did you find this review helpful?
  • jsismanidis
    4
    1 out of 1 members found this review helpful
    Store representative

    Verified purchase

    eWeLink does not (yet) recognize it as a sensor like the previous SNZB-02, which creates some issues with automations and scenes. Other than that, reliable and functional.

    Translated from Greek ·
    Did you find this review helpful?
  • Pstath
    5
    7 out of 7 members found this review helpful

    Verified purchase

    As a hygrometer and thermometer, it is a beast. I will soon get the ZigBee bridge as well, and I will return, but I am expecting miracles. I am very satisfied with Sonoff. I have many of their devices..

    Update 8/7/25: I got the zb bridge, it's worth it and then some! I have no words to describe how good a purchase this is! Bravo to Sonoff for helping us make our homes smart with relatively little money.

    Translated from Greek ·
    Did you find this review helpful?
  • Mevento
    5
    7 out of 7 members found this review helpful

    Verified purchase

    It is really very beautiful with a good screen. It has a very clever way of mounting on the wall so you can easily remove it to change the battery or if you want to temporarily take it somewhere else, and it is also magnetic if you want.
    To the friend who said it comes without a battery, he is wrong; it comes normally with a battery inside.
    Be careful, it connects ONLY with an adapter or some ZigBee hub; it is NOT Wi-Fi

    Translated from Greek ·
    Did you find this review helpful?
  • depa_mono
    5
    1 out of 6 members found this review helpful

    Verified purchase

    Attention! It does not have a battery inside. I connected it to home assistant, all good. It will need a zigbee receiver

    Translated from Greek ·
    Did you find this review helpful?
  • Μιχάλης88
    2
    0 out of 14 members found this review helpful

    Verified purchase

    It does not connect to wifi! I did everything!! Obviously, they want us to buy the zigbee bridge and connect it there first, which means an extra cost of about 20€!

    Translated from Greek ·
    Did you find this review helpful?
  • stelioskos
    4
    3 out of 4 members found this review helpful

    Verified purchase

    This autonomous temperature and humidity sensor works perfectly. When connected to a Zigbee hub for remote control, it experiences continuous disconnections.

    Translated from Greek ·
    Did you find this review helpful?
  • theokalam
    5
    5 out of 5 members found this review helpful

    Verified purchase

    They do what they are supposed to without disconnections. I have 6 of these and in 5 months only 2 of them experienced disconnection twice. The accuracy of the temperature and the deviation that all 6 thermometers show between each other is minimal, around 0.2 degrees Celsius. Very reliable.

    Translated from Greek ·
    Did you find this review helpful?
  • Isaak_Kantiltziadis
    1
    4 out of 14 members found this review helpful

    Verified purchase

    Communication with the Wi-Fi router is constantly lost and requires a restart. Also, I use it as a simple thermometer

    Translated from Greek ·
    Did you find this review helpful?
  • it drains the battery quickly compared to similar ones

    Translated from Greek ·
    Did you find this review helpful?
  • Good and at a reasonable price. Easily integrates into Home Assistant

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Fairly accurate readings, at the level of SNZB-02P.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful

    Verified purchase

    It works just fine. You can calibrate it from the app.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    The only negative is that it arrived with an almost empty battery

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful

    Verified purchase

    Verified purchase.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    3 out of 5 members found this review helpful

    Verified purchase

    From temperature/humidity measurement, it's just fine. Be careful, it only works with Sonoff gateways

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful

    Verified purchase

    The most user-friendly and very accurate in its measurements.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    3 out of 5 members found this review helpful

    Verified purchase

    Quality and does what it promises. Attention, it connects with Zigbee Pro hub

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • Verified purchase

  • nice good measurement

    Translated from Greek ·
    0
  • Perfect for its simple use. Checked accurate measurements for both temperature and humidity levels, with minimal deviation, and continuous battery indicator to show when it needs changing. The battery is normally included in the package inside the product, you just need to pull out the plastic tab from the back. It does not have lighting, but in most conditions the screen is perfectly visible anyway. Easy placement either on the wall, in the fridge since it has a magnet, or on a piece of furniture as it can also stand on its own.

    Translated from Greek ·
    0
  • eWeLink does not (yet) recognize it as a sensor like the previous SNZB-02, which creates some issues with automations and scenes. Other than that, reliable and functional.

    Translated from Greek ·
    1
  • As a hygrometer and thermometer, it is a beast. I will soon get the ZigBee bridge as well, and I will return, but I am expecting miracles. I am very satisfied with Sonoff. I have many of their devices..

    Update 8/7/25: I got the zb bridge, it's worth it and then some! I have no words to describe how good a purchase this is! Bravo to Sonoff for helping us make our homes smart with relatively little money.

    Translated from Greek ·
    7
  • See all
11,12 €
14,00 €   shipping cost