SONOFF SNZB-02D Smart Temperature & Humidity Sensor | Zigbee LCD | Alexa, Google Home & Home Assistant

SONOFF SNZB-02D – Zigbee Smart Temperature & Humidity Sensor with LCD Display

Monitor your home's climate in real time with the SONOFF SNZB-02D, a Zigbee 3.0 temperature and humidity sensor featuring a large 2.5-inch LCD display. Accurate to ±0.2°C and ±2% RH, with data refreshed every 5 seconds, it's the ideal smart home sensor for living rooms, baby rooms, greenhouses, wine cellars, and more.

Key Features

• High-Accuracy Swiss-Made Sensor – ±0.2°C temperature / ±2% RH humidity precision
• Large 2.5" LCD Display – Bold, easy-to-read numbers with °C/°F toggle
• 5-Second Refresh Rate – Always shows the latest environmental data
• Zigbee 3.0 Compatible – Works with SONOFF ZBBridge-P, NSPanel Pro, ZBDongle-P/E, Alexa built-in Zigbee Hub, and more
• Voice Control – Compatible with Alexa, Google Home, and Alice
• Home Assistant Support – Integrate via eWeLink add-on
• Smart Alerts – Instant app notifications when temperature or humidity exceeds your comfort threshold
• Cloud Data Storage – Up to 6 months of free cloud history with hourly data export
• 120m / 400ft Wireless Range – Reliable Zigbee mesh coverage
• 3 Mounting Options – Tabletop stand, magnetic back, or 3M adhesive
• 2-Year Battery Life – Powered by CR2450 (3V) battery (included)
• Comfort Icons – Hot/Cold/Dry/Wet indicators to guide humidifier or dehumidifier use

Specifications

• Model: SNZB-02D
• Brand: SONOFF
• Communication: Zigbee 3.0
• App: eWeLink
• Working Temperature: -9.9°C to 60°C
• Working Humidity: 5–95% RH (non-condensing)
• Battery: CR2450 (3V), ~2-year life
• Casing: PC + LCD
• Certifications: CE, FCC

What's in the Box

• 1× SNZB-02D Sensor (battery included)
• 1× User Manual
• 1× 3M Adhesive

Note: A Zigbee hub/bridge is required. The ZBBridge-P bundle option includes the SONOFF Zigbee Bridge Pro.