Description
Monitor your home’s indoor climate with precision and ease
The SONOFF SNZB-02D is a smart temperature and humidity sensor that provides real-time environmental data to help optimize comfort and energy efficiency in your home. It can trigger automated actions for air conditioners, fans, humidifiers, or other connected devices based on the measured conditions, and sends instant alerts when critical thresholds are reached. Equipped with highly accurate sensors and long battery life, the SNZB-02D ensures reliable monitoring over extended periods. Its wide Zigbee compatibility allows seamless integration with a variety of smart home devices and ecosystems, enhancing convenience, safety, and intelligent automation throughout your home.
Key Features
High Accuracy
Equipped with a Swiss-made sensor, it delivers precise temperature (±0.2°C / ±0.4°F) and humidity (±2% RH) readings, updated every 5 seconds .
Large LCD Display
Clear, intuitive LCD shows live temperature, humidity, battery status, and room condition icons at a glance .
Remote Real-Time Monitoring
Track your home’s climate remotely via the eWeLink app, with coverage up to 120m/400ft in open spaces .
Instant App Alerts
Receive push notifications when temperature or humidity exceeds preset levels, ensuring timely action .
Data Logging & Export
Supports up to 6 months of cloud storage ☁️. View hourly trends, historical highs/lows, and export data for analysis .
Zigbee 3.0 Compatible
Works with SONOFF gateways (ZBBridge-P, NSPanel Pro, iHost) and integrates with Home Assistant via ZHA or Zigbee2MQTT .
Flexible Mounting Options
Includes a desk stand, magnetic back, and 3M adhesive for versatile placement .
Smart Scene Automation
Temperature or humidity changes can trigger smart devices automatically, such as humidifiers, fans, or AC units .
Works with Voice Assistants
Compatible with Alexa, Google Home, and Apple Home via Matter Bridge for hands-free control .
Technical Specifications
| Specification |
Details |
| Model |
SNZB-02D |
| Protocol |
Zigbee 3.0 |
| Display |
LCD |
| Battery |
CR2450 (3V) |
| Temperature Range |
-10°C to +60°C |
| Humidity Range |
10% – 90% RH |
| Accuracy |
±0.2°C / ±2% RH |
| App Support |
eWeLink (iOS/Android) |
| Voice Assistants |
Alexa, Google Home, SmartThings |
| Dimensions |
Compact desktop or wall-mount |
| Working Humidity |
5–95% RH (non-condensing) |
Why Use SNZB‑02D
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Real-time monitoring of indoor temperature and humidity for optimal comfort and health.
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High-precision sensors ensure reliable data for smart automations.
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Integrates with Zigbee hubs and smart home ecosystems for scene creation.
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Long battery life and versatile mounting allow flexible placement.
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Cloud storage and export capability for tracking historical trends and analysis.
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Compatible with voice assistants for hands-free control and convenience.
