SONOFF SNZB-02D Zigbee LCD Temperature & Humidity Sensor
SONOFF SNZB-02D is a Zigbee 3.0 smart temperature and humidity sensor with a clear LCD display for real-time indoor monitoring.
Featuring a high-precision sensor with ±0.2°C temperature accuracy and ±2% RH humidity accuracy, it supports remote monitoring, notifications, smart scenes, and up to 6 months of historical data through eWeLink with a compatible Zigbee gateway.
The sensor runs on a CR2450 battery and offers magnetic, adhesive, and desktop mounting options. Ideal for bedrooms, living rooms, offices, and compatible smart home automation systems.
Contact Aura Smart Home for availability, compatibility, and product details.
SONOFF SNZB-02D Zigbee LCD Temperature & Humidity Sensor
The SONOFF SNZB-02D is a smart indoor temperature and humidity sensor designed for accurate, convenient environmental monitoring in homes, offices, and connected spaces. Its large LCD display shows temperature and humidity readings clearly, while Zigbee 3.0 connectivity enables integration with compatible smart home systems.
This SONOFF Temperature Humidity Sensor features a high-precision Swiss-made sensing element with temperature accuracy of ±0.2°C and humidity accuracy of ±2% RH. With a compatible Zigbee gateway, readings can be monitored through the eWeLink app and used to trigger supported smart scenes.
The SONOFF SNZB-02D LCD sensor is powered by a replaceable CR2450 battery. It supports flexible placement using a desktop stand, magnetic mounting, or adhesive mounting.
SONOFF SNZB-02D Product Overview
The SONOFF SNZB-02D provides a practical way to monitor indoor temperature and humidity without relying entirely on a smartphone. Its LCD screen displays current readings at a glance, making it useful in bedrooms, living rooms, offices, and other indoor environments.
The sensor communicates through Zigbee 3.0 and requires a compatible Zigbee gateway for connected app functions such as remote monitoring, smart alerts, historical records, and automation.
This SONOFF Zigbee LCD Sensor can become part of a wider smart home system, allowing compatible appliances to respond to changes in temperature or humidity through configured automation.
Its compact white enclosure, battery-powered operation, and multiple mounting options make installation simple and flexible for everyday indoor monitoring.
Key Features of SONOFF SNZB-02D
Clear LCD Display
Displays real-time temperature and relative humidity readings with clear digits. Screen indicators also provide useful device and environmental status information. Temperature units can be switched between Celsius and Fahrenheit.
High-Precision Swiss Sensor
Accurate indoor measurements with ±0.2°C temperature accuracy and ±2% RH humidity accuracy. The display resolution is 0.1°C and 0.1% RH, helping users observe small changes in environmental conditions.
Zigbee 3.0 Connectivity
Uses Zigbee 3.0 for low-power wireless communication with compatible hubs and coordinators. Connected features depend on the selected gateway, supported integrations, and network setup.
Fast Data Reporting
The shortest data reporting interval is approximately 5 seconds when a reading changes. Reporting is not necessarily continuous every five seconds; stable conditions may result in less frequent updates.
eWeLink App Monitoring
Monitor temperature and humidity through the eWeLink app when connected to a compatible SONOFF gateway. Supported features include monitoring, notifications, and automation settings.
Up to 6 Months of History
Review up to six months of temperature and humidity history through supported eWeLink cloud features. Export availability and historical views depend on the applicable app and service configuration.
Smart Scene Automation
Use temperature or humidity thresholds as automation triggers. For example, a compatible smart plug can activate a humidifier when humidity drops below a chosen level.
Flexible Mounting
Choose between desktop placement, magnetic attachment, or 3M adhesive installation. The compact design makes the sensor suitable for different indoor spaces.
Battery-Powered Operation
Powered by one CR2450 3V battery, eliminating the need for permanent electrical wiring or a power cable during regular operation.
Indoor Environmental Monitoring
Suitable for monitoring temperature and humidity in bedrooms, nurseries, living areas, home offices, and other dry indoor environments.
Compatible Smart Home Platforms
The Zigbee Temperature Humidity Sensor can be integrated into supported SONOFF and third-party Zigbee environments, provided the specific gateway and software recognize the SNZB-02D device.
With a suitable Zigbee coordinator such as SONOFF ZBDongle-P or ZBDongle-E, the sensor may be integrated into compatible Home Assistant deployments, including Zigbee2MQTT configurations.
Voice queries through Amazon Alexa or Google Home require a compatible gateway, platform integration, and supported device capabilities.
Compatibility Notice: Zigbee 3.0 support alone does not guarantee compatibility with every Zigbee hub or voice assistant. Always verify the supported device list and available functions before installation.
Smart Automation Examples
- Humidity Control: Activate a compatible humidifier when relative humidity falls below a preset threshold.
- Room Temperature Monitoring: Receive notifications if the room becomes warmer or colder than the configured range.
- Air Conditioning Automation: Trigger a compatible AC controller based on temperature readings.
- Ventilation Scenes: Activate compatible ventilation equipment through a configured automation routine.
SONOFF SNZB-02D Technical Specifications
| Brand | SONOFF |
| Model | SNZB-02D |
| Product Type | Zigbee LCD Smart Temperature & Humidity Sensor |
| Display Type | LCD |
| Wireless Protocol | Zigbee 3.0 / IEEE 802.15.4 |
| MCU | EFR32MG22 |
| Temperature Accuracy | ±0.2°C / ±0.4°F |
| Humidity Accuracy | ±2% RH |
| Temperature Resolution | 0.1°C / 0.1°F |
| Humidity Resolution | 0.1% RH |
| Shortest Reporting Interval | 5 seconds when readings change |
| Working Temperature | -9.9°C to 60°C |
| Working Humidity | 5%–95% RH, non-condensing |
| Power Input | 3V DC |
| Battery Type | CR2450 |
| Application | eWeLink with a compatible Zigbee gateway |
| Historical Records | Up to 6 months through supported cloud features |
| Smart Home Integration | Home Assistant / Zigbee2MQTT with compatible setup |
| Voice Assistant Integration | Alexa / Google Home through supported gateways |
| Color | White |
| Casing Material | PC + LCD |
| Dimensions | 59.5 × 62.5 × 18.5 mm |
| Net Weight | 69.5 g |
| Installation Options | Desktop Stand / Magnetic / 3M Adhesive |
| Installation Environment | Indoor |
| Applicable Altitude | Below 2,000 m |
| Certifications | CE / FCC / ISED / RoHS |
Technical Note: A compatible Zigbee gateway or coordinator is required for connected app functions. Available automation, voice control, and cloud history features depend on the chosen platform and software setup.
Ideal Applications for SONOFF SNZB-02D
The SONOFF SNZB-02D is designed for monitoring indoor temperature and humidity while adding environmental data to compatible Zigbee smart home systems.
- Bedroom Monitoring: Check indoor temperature and humidity directly on the LCD screen.
- Living Room Comfort: Monitor environmental conditions and trigger supported smart scenes.
- Nursery Monitoring: Track room temperature and humidity to help assess indoor comfort.
- Office Environments: Review temperature and humidity trends during daily work.
- Smart AC Control: Use readings to trigger compatible air conditioning controllers.
- Humidity Automation: Connect environmental readings to compatible humidifiers, dehumidifiers, or ventilation systems.
Important Installation Tips
- Use a Zigbee gateway or coordinator that supports SONOFF SNZB-02D.
- Install away from direct sunlight and nearby heat sources.
- Avoid placing directly beside AC outlets, heaters, or windows exposed to rapid temperature changes.
- Protect the device from water, condensation, and unsuitable outdoor environments.
- Choose a placement with reliable Zigbee signal coverage.
- Configure supported alerts and automation routines after pairing.
For product availability, smart home compatibility, and installation guidance, contact Aura Smart Home.
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Sonoff |
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