SONOFF AirGuard TH E-Ink Lite Zigbee temperature and humidity sensor SNZB-02UL
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SONOFF AirGuard TH E-Ink Lite Zigbee temperature and humidity sensor SNZB-02UL
SONOFF AirGuard TH E-Ink Lite Zigbee temperature and humidity sensor SNZB-02UL
Smart temperature and humidity monitoring for your home
The SONOFF AirGuard TH E-Ink Lite sensor helps you maintain the perfect home climate by measuring temperature and humidity. With a clear 2.9" E-Ink display, it shows the current temperature and humidity at a glance, even in bright ambient light. The sensor operates in a range of 0 to 50°C and 5–95% humidity, making it suitable for standard rooms as well as more demanding environments such as cellars or greenhouses. Once connected via a Zigbee gateway, you can track data in the eWeLink app, where the SONOFF AirGuard TH E-Ink Lite sensor stores up to 6 months of history, displays clear graphs, and offers advanced analytics such as dew point or VPD. A practical advantage is the ability to display the temperature from another Zigbee sensor remotely directly on the screen, which is ideal for checking a child's room, cellar, or greenhouse without having to walk into the room. You can also integrate the SONOFF AirGuard TH E-Ink Lite sensor into the Apple Home ecosystem via a Matter Bridge, using a compatible Zigbee gateway with Matter support. It supports voice assistants and easily integrates into smart scenes and automations, for example to trigger a humidifier, air conditioning, or heating when set thresholds are exceeded. Enjoy a stable, comfortable, and healthier environment, clear data, and smart temperature and humidity control tailored to your needs.
Key features of the SONOFF AirGuard TH E-Ink Lite sensor
- Displays current temperature and humidity on a clear 2.9" E-Ink screen
- Tracks advanced measurements in the eWeLink app
- Displays temperature from another compatible Zigbee sensor directly on its screen
- Supports smart automations and scenes
- Supports voice assistant control
- Features an operating range of 0 to 50°C / 5–95% humidity
Reliable temperature and humidity measurement
The SONOFF AirGuard TH E-Ink Lite sensor accurately measures temperature from 0 to 50°C and humidity from 5–95% RH, displaying the values on a clear 2.9" E-Ink screen with excellent readability even in bright ambient light. A stable Zigbee connection ensures fast data transmission to your smart home while maintaining low power consumption, so you can rely on the sensor for daily climate checks and smart automations over the long term.
Maximum accuracy with a Swiss Sensirion sensor
The SONOFF AirGuard TH E-Ink Lite features a highly accurate Swiss Sensirion sensor that ensures temperature measurements with an accuracy of ±0.2°C and humidity with an accuracy of ±2% RH. With readings updated every 5 seconds, you always have up-to-date information on room conditions and easily capture even minor changes in temperature or humidity.
Remote temperature and humidity monitoring via the eWeLink app
The SONOFF AirGuard TH E-Ink Lite keeps you informed of temperature and humidity from anywhere via the eWeLink app. Monitor the measured values directly on your phone to easily check the current status remotely. Remote monitoring keeps your home climate under control even when you are away.
Accurate measurement history and smart data analysis
Long-term storage of temperature and humidity values provides a detailed overview of your room climate trends. The eWeLink app displays 24-hour real-time data, clear graphs with up to 6 months of history, and comfort indicators such as dew point or VPD. Advanced analytics on the SONOFF AirGuard TH E-Ink Lite sensor help you better understand environmental changes so you can adjust heating, ventilation, or humidification for long-term comfort at home.
Integration into Apple Home via Matter Bridge
A Matter Bridge lets you easily integrate the SONOFF AirGuard TH E-Ink Lite sensor into the Apple Home ecosystem, even though it is a Zigbee device. The connection works via a compatible Matter solution, such as Matter-supported hardware or software, letting you control the sensor, view its data, and include it in automations directly within Apple Home. This provides unified control of your entire smart home across platforms and convenient temperature and humidity management in a single interface.
SONOFF AirGuard TH E-Ink Lite supports data display from two sensors
The SONOFF AirGuard TH E-Ink Lite sensor lets you monitor temperature and humidity not only in the room where it is located, but also from another compatible Zigbee sensor connected to the same gateway. This remote display of values directly on the screen makes it easy to check conditions in a child's room or bedroom, for example, without having to get up or reach for your phone. Enjoy peace of mind, quick environmental checks in different parts of your home, and the confidence that important conditions are monitored remotely.
Voice control via Alexa, Google Assistant and SmartThings
With voice control support, the SONOFF AirGuard TH E-Ink Lite lets you find out the current temperature conveniently without having to reach for your phone. Just ask Amazon Alexa, Google Assistant, or Samsung SmartThings for an instant update on room conditions. Voice control is especially useful when working, looking after children, or relaxing in the evening.
A sensor for monitoring temperature and humidity in various environments
The SONOFF AirGuard TH E-Ink Lite sensor is designed for use in a wide range of real-world environments where stable temperature and humidity matter. It reliably serves in wine cellars, greenhouses, pantries, or pool areas, helping you maintain suitable conditions for storage, growing, or comfort. By connecting other Zigbee sensors under the same gateway and viewing their values remotely, you get an overview of multiple locations at once without physically checking each room.
SONOFF AirGuard TH E-Ink Lite sensor lets you set up smart scenes that react to climate changes
Easily integrate the SONOFF AirGuard TH E-Ink Lite sensor into smart scenes and automations that react to temperature or humidity changes in your home. When set thresholds are exceeded, the sensor automatically triggers a humidifier, fan, air conditioning, or heating, while sending an instant notification to the eWeLink app. The entire system responds automatically and precisely according to your rules, without the need for constant manual checks.
Easy integration into open-source smart home platforms
The sensor integrates easily into open-source smart home solutions, giving you full control over your data and automations. When using a SONOFF Dongle as a Zigbee coordinator, you can connect the sensor to your own system, display measured values in clear graphs, and create advanced scenarios tailored to your needs. This makes the SONOFF AirGuard TH E-Ink Lite an ideal choice for tech-savvy users who want an open solution independent of a single platform and maximum flexibility in home climate management.
Easy placement without cables or sockets
Powered by two standard AAA batteries, the sensor requires no mains connection or wiring. This lets you place it exactly where you need to monitor temperature and humidity, such as a bedroom, child's room, cellar, or study. The SONOFF AirGuard TH E-Ink Lite also offers multiple installation options – stand it on a table using the fold-out stand, attach it magnetically to a metal surface, or mount it on a wall using the mounting holes or the included adhesive tape.
Specifications
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Temperature and humidity detection
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| Code: | SNF2657 |
| Warranty: | 24 months |
| Links: | Producer's Website: |