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  • New item   Smart | wireless temperature and humidity sensor | white | Wi-Fi | ZigBee | SONOFF | SNZB-02D
    New item   Smart | wireless temperature and humidity sensor | white | Wi-Fi | ZigBee | SONOFF | SNZB-02D 1
    New item   Smart | wireless temperature and humidity sensor | white | Wi-Fi | ZigBee | SONOFF | SNZB-02D 2

    Smart | wireless temperature and humidity sensor | white | Wi-Fi | ZigBee | SONOFF | SNZB-02D

    Code: SONOFF-SNZB-02D
    Barcode: 6920075740004
    Inquire about this item
    Price 12.10 € VAT incl.
    ( 10.00 € VAT excl. )

    SONOFF SNZB-02D is a wireless Zigbee 3.0 temperature and humidity sensor with an LCD display and comfort indication. Data is visible on the display and in the eWeLink app and is used for heating, ventilation and humidification scenes. Zigbee hub required, CR2450 battery.

  • Product description

    Smart | wireless temperature and humidity sensor | white | Wi-Fi | ZigBee | SONOFF | SNZB-02D

    SONOFF SNZB-02D is a wireless Zigbee 3.0 temperature and humidity sensor with a large LCD display. It shows the room climate on the spot and sends data to the hub, where it is used to automate heating, ventilation and humidification.

    Key idea:
    One device acts both as a room thermo-hygrometer on the wall or table and as a smart system sensor. Data history and scenes work via a Zigbee hub.
    Measurement
    temperature and humidity
    Display
    LCD with comfort indication
    Connectivity
    Zigbee 3.0
    Dimensions
    62 × 59 × 20 mm

    How it works

    The sensor measures air temperature and relative humidity, shows them on the display and sends the values to the hub over the Zigbee 3.0 network.

    The hub (ZBBridge-P, NSPanel Pro, iHost or a Zigbee adapter with Home Assistant) stores the history and, based on thresholds, switches on a heater, fan or humidifier, or sends a notification.

    The device runs on a CR2450 battery and stands on a table or is mounted on a wall or metal surface.

    Why choose SNZB-02D?
    The clear display shows the climate without opening the app, and Zigbee saves battery and works reliably in a network with other SONOFF Zigbee devices.

    Technical specifications

    Product type Wireless Zigbee 3.0 temperature and humidity sensor with LCD display
    Manufacturer / model SONOFF SNZB-02D
    Measured parameters temperature, relative humidity
    Accuracy ±0.2 °C; ±2 % RH (typical)
    Display LCD with comfort level indication
    Wireless Zigbee 3.0 (IEEE 802.15.4)
    Required hub ZBBridge-P, NSPanel Pro, iHost or Zigbee adapter
    Power 3 V CR2450 battery
    Apps and integrations eWeLink, Amazon Alexa, Google Assistant, Home Assistant
    Operating temperature -10 °C … +40 °C
    Housing PC V0, white
    Dimensions 62 × 59 × 20 mm

    Main functions

    • Temperature and humidity measurement – accurate real-time data.
    • LCD display – values and comfort level visible without a phone.
    • Data history – charts in the app via the hub.
    • Threshold scenes – switch on heating, ventilation or a humidifier.
    • Notifications – about too high or too low temperature and humidity.
    • Home Assistant support – ZHA and Zigbee2MQTT.

    Where is it used?

    • Bedrooms and children's rooms
    • Bathrooms and laundry rooms
    • Server and technical rooms
    • Storage rooms and basements
    • Greenhouses (in a dry spot)
    • Offices and meeting rooms

    Use by need

    For homeowners.
    You see the climate on the display and phone, and heating or a humidifier switches on automatically.
    For electricians.
    A wireless sensor for room temperature without running cables to a thermostat.
    For smart home integrators.
    Accurate Zigbee data suits heating zones with TRVZB heads and ventilation scenes.

    Practical use

    If moisture builds up in the bathroom, SNZB-02D is hung on the wall, paired with ZBBridge-P, and a scene is set: when humidity exceeds 70 %, the fan switches on via a ZBMINI relay.

    Pros

    • Large LCD display
    • Accurate temperature and humidity measurement
    • Zigbee 3.0 – long battery life
    • Stands or mounts on a wall
    • Works with Home Assistant

    Cons / limitations

    • Zigbee hub required
    • Indoor use only
    • Not designed for direct exposure to moisture or water
    • No external probe

    Safety and installation notes

    • Use indoors and protect from water and condensation
    • Do not install near heat sources or in direct sunlight – readings will be inaccurate
    • Observe polarity when replacing the battery
    • Recycle used batteries
    • Keep away from children – contains small parts and a battery

    Quick selection guide

    Temperature and humidity
    LCD display
    Zigbee 3.0
    CR2450 battery
    Hub required
    Indoor
    Suitable when you need:
    • see the room climate on the display and phone
    • automate heating, ventilation or humidification
    • get notifications about temperature or humidity limits
    Check before use:
    • whether you have a Zigbee hub
    • a mounting spot away from heat sources
    • the distance to the hub or a repeater
    • that there is no direct exposure to water in the room
    Important reminder: SNZB-02D measures ambient conditions but does not replace protective thermostats or safety devices of heating equipment.

    FAQ

    Is a hub needed?
    Yes, SNZB-02D works via a Zigbee hub: ZBBridge-P, NSPanel Pro, iHost or a Zigbee adapter.
    Does the display work without a hub?
    Yes, temperature and humidity are always shown on the display; the hub is needed for history and scenes.
    What battery does it use?
    A 3 V CR2450 battery.
    Can it be used in a bathroom?
    Yes, in a dry spot without water splashes.
    Does it work with TRVZB heads?
    Yes, the sensor data can be used in radiator control scenes.
    Can it be used outdoors?
    No, for outdoors choose SNZB-02WD with IP65 protection.

    Smart | wireless temperature and humidity sensor | white | Wi-Fi | ZigBee | SONOFF | SNZB-02D

    SONOFF SNZB-02D is a wireless Zigbee 3.0 temperature and humidity sensor with an LCD display: accurate readings on the spot and in the app, scenes for heating and ventilation, works with SONOFF hubs and Home Assistant.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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