Sonoff SNZB-02

ZigBee LCD Temperature and Humidity Sensor Sonoff AirGuard TH SNZB-02DR2Sonoff AirGuard TH SNZB-02DR2 is a smart ZigBee temperature and humidity sensor with a large 3.6" LCD display that shows current conditions, daily maximum and minimum values, and air comfort level in real time. It combines laboratory precision (±0.2°C / ±2% RH), modern wireless connectivity, and energy-efficient battery operation in one compact device. With it, you always know if the room has a healthy microclimate—no guessing, no assumptions, no unnecessary complications.Clear and large 3.6" LCD screenThe clear, high-contrast display is designed so that the most important data is visible from a distance. One glance is enough to check the temperature, humidity, min/max values for the last 24 hours, and a graphical comfort indicator. You don't need to open an app or reach for your phone – the information is always at your fingertips, exactly when you need it.Precise premium sensor – Sensirion SHT40At the heart of the device is the professional Sensirion SHT40 sensor, known for its industrial and measurement applications. It provides exceptionally stable and reliable readings, which translates into real benefits: better sleeping conditions, healthier air for children, and protection of plants, food, and wine from excessive moisture. This device measures accurately – because when it comes to comfort, there is no room for chance.ZigBee 3.0 – smart automation without cablesThanks to ZigBee 3.0 connectivity, the sensor operates stably, responds quickly, and consumes a minimum of energy. Once paired with the gateway, you can monitor data in the app, set alerts, and create automations – e.g., turning on a humidifier when the air is too dry or ventilation when humidity is excessive. It's a smart home that takes care of your comfort before you even notice a problem.Data history and analyticsAirGuard TH records measurements and presents them in the form of clear graphs, allowing you to track changes over time – with accuracy down to the minute. Daily, weekly, and multi-month statistics are available, as well as information on dew point and VPD. It is a practical tool that helps you better plan ventilation, heating, or plant watering and effectively prevent mold and excessive moisture.Works with your smart home systemThe sensor integrates seamlessly with popular platforms and hubs: Sonoff, Home Assistant, Zigbee2MQTT, SmartThings, as well as voice assistants such as Alexa and Google Home, and the Matter Bridge environment. You can check the temperature with your voice, view data remotely, and turn on devices from anywhere. This gives you complete freedom and flexibility regardless of your chosen ecosystem.Proximity mode – use even without a gatewayDon't have a ZigBee hub? No problem. In Proximity mode, you can connect directly to your smartphone via Bluetooth to check current parameters, calibrate the sensor, change °C/°F units, or export data. It's the perfect solution for those who want to start with simple monitoring and only later expand the system with automation.Compact design and versatile applicationThe slim housing made of durable PC+ABS, powered by two AAA batteries, and the ability to stand or hang make the AirGuard TH suitable for literally anywhere – in the bedroom, children's room, greenhouse, pantry, basement, warehouse, or office. A wide operating range (-20°C to 60°C, 5–95% RH) ensures reliability in various conditions. It is a small device that gives you great control over the comfort and safety of your environment every day.Included ZigBee LCD Sonoff AirGuard TH SNZB-02DR2 Temperature and Humidity Sensor User manual Manufacturer Sonoff Model SNZB-02DR2 (AirGuard TH) Device type Smart temperature and humidity sensor (ZigBee + Bluetooth) Wireless connectivity ZigBee 3.0 (IEEE 802.15.4) + Bluetooth (Proximity Mode) Display 3.6" high-contrast LCD Data displayed on screen Current temperatureCurrent humidityMin/max 24hComfort indexBattery status Measuring

ZigBee LCD Temperature Sensor Sonoff SNZB-02LD (with probe).Gain full control over the temperature in your home, garden or workplace with the Sonoff SNZB-02LD smart temperature sensor. The device supports the Zigbee 3.0 protocol, and its compact design with a 2.2" LCD display and measuring probe provides exceptional versatility in monitoring temperature - even in hard-to-reach places. Note that the device requires a compatible Zigbee gateway to function properly. Managing the temperature in your home has never been so easy!Accuracy you can rely onUsing a food-grade 304 stainless steel probe, the sensor provides accurate temperature measurement with a tolerance of ±0.5°C over a wide range from -40°C to 115°C. Fast data updates every 5 seconds keep you up to date with even the smallest temperature fluctuations - both in liquids and enclosed spaces such as aquariums, refrigerators, wine cellars and freezers.Built for special tasksThe UV-resistant housing and IP65 sealing ensure reliable operation even in wet or splashy areas. It's ideal for monitoring temperatures outdoors, in the bathroom and even in water tanks. The 1.5-meter-long probe makes it possible to measure temperature in places that standard sensors can't access. It's precision that makes everyday life easier.Data always at handGet even more options with the intuitive eWeLink app. With its help you can check the current temperature, as well as track the history of measurements from the last 180 days. A convenient daily, monthly or semi-annual view will help you better manage, for example, the temperature in your water tank or refrigerator.Automate your home and respond immediatelyIntegrated with the eWeLink app, the sensor allows you to create smart scenes - from notifications when the set temperature is exceeded to automatically turning on the heating with devices like the ZBMINIR2. You can also control the temperature by voice - all you need is a connection via a Zigbee gateway to a voice platform (such as Alexa or Google Assistant).Integration with open-source systems and convenient installationSNZB-02LD supports integration with open-source platforms, such as Home Assistant, through the SONOFF ZBDongle series. This gives you full freedom to create your own home automation scenes. A magnetic back panel and hanging bracket make mounting the unit quick and hassle-free.Included temperature sensor with probe (with CR2477 battery) Velcro card pin rope for hanging instruction manual Manufacturer Sonoff Model SNZB-02LD Color White Input 3V Battery type CR2477 Wireless connectivity Zigbee3.0 Probe length 1.5 m Safety class IP65 Working temperature of the sensor -10°C to 60°C Working humidity of the sensor 0~100%RH Probe operating temperature -40°C to 115°C Housing material PC, ABS Dimensions 62.8 x 58.5 x 21.8 mm Application eWeLink Display LED 2.2"