The Sonoff SNZB-02DR2 AirGuard TH is a smart temperature and humidity sensor designed to give you a clear, immediate view of your indoor climate. Its most striking feature is the 3.6-inch LCD screen, which allows you to check real-time local data at a glance without needing to open an app. Beyond current readings, the display tracks daily maximum, minimum, and average values, and can even evaluate the dew point and vapor pressure deficit (VPD) to help you maintain a precise environment. Built with a durable PC+ABS housing, the device measures 95 x 70 x 18.2 mm and weighs 99.3 g including the battery. It operates using the Zigbee 3.0 protocol, ensuring stable connectivity when paired with a compatible gateway. For those who have multiple sensors, this model can act as a central hub, displaying remote values from other sensors like the SNZB-02 or SNZB-02P directly on its screen. Using the eWeLink app, you can access up to six months of historical data to spot long-term trends in your home. The sensor is highly accurate, with a temperature margin of ±0.2°C and humidity within ±2% RH, functioning reliably in temperatures from -20°C to 60°C. It is a practical choice for anyone using Home Assistant, Zigbee2MQTT, or Sonoff iHost who wants a physical display for their smart home climate data.