Sonoff AirGuard TH 3.6'' LCD Zigbee Temperature And Humidity Sensor

Take full control of your indoor climate with the SONOFF AirGuard TH (SNZB-02DR2). Moving beyond simple monitoring, this next-generation sensor features a massive 3.6-inch LCD display, providing a comprehensive command center for your home’s air quality, comfort, and data-driven climate automation.

Clarity at a Glance

The AirGuard TH isn't just a sensor; it’s a high-visibility dashboard. The expanded 3.6'' screen allows you to monitor real-time temperature and humidity, 24-hour extremes (Min/Max), and even data from remote sensors in other rooms—all without needing to open an app.

Key Features

• Advanced Environmental Analysis: Beyond basic temp/humidity, the AirGuard provides professional-grade insights including Dew Point and VPD (Vapor Pressure Deficit) analysis, helping you maintain the perfect environment for everything from rare plants to a healthy living space.

• Remote Temperature Comparison: In Zigbee mode, the AirGuard can link with other SNZB-02 series sensors (02/02P/02WD/02D/02LD). It displays data from your remote sensors directly on its screen, making it easy to check the nursery or garage temperature from your kitchen.

• Precision Swiss Engineering: Equipped with a high-accuracy Swiss-made sensor, the AirGuard delivers readings accurate to ±0.2°C for temperature and ±2%RH for humidity, with rapid refresh rates to capture every environmental shift.

• 6-Month Historical Data: Track your home’s trends with up to 6 months of detailed cloud storage. View max, min, and average curves via the eWeLink app, or export your data as .CSV files for deep-dive analysis.

• Custom Reporting Intervals: Take control of your data flow. Adjust reporting frequencies based on specific thresholds or time cycles to perfectly balance real-time accuracy with battery efficiency.

Seamless Smart Home Integration

The SNZB-02DR2 is built for the modern smart home. It integrates effortlessly with Home Assistant (ZHA/Zigbee2MQTT) and the eWeLink ecosystem. Use it to trigger smart scenes—like turning on a humidifier when the air gets too dry or kicking on the AC when a specific temperature threshold is hit.