SONOFF IP65 Long Distance Zigbee 3.0 LCD Smart Temperature & Humidity Sensor (Probe Version) SNZB-02LD

The SONOFF SNZB-02LD Zigbee Temperature Sensor is a professional-grade monitoring device designed for accurate temperature measurement in demanding environments. Using Zigbee 3.0 technology, it ensures stable communication, low power consumption, and seamless integration with a wide range of Zigbee hubs and smart home systems.

A key feature of the SNZB-02LD is its external 1.5 m stainless-steel probe, which allows precise temperature measurement in liquids, soil, pipes, tanks, refrigerators, and other hard-to-reach or enclosed spaces. The main sensor unit is rated IP65, making it resistant to splashes, humidity, and damp conditions, suitable for kitchens, bathrooms, greenhouses, and protected outdoor areas.

The built-in 2.2″ LCD screen displays real-time temperature readings locally in either Celsius or Fahrenheit, allowing quick checks without opening the app. Through the eWeLink app, users can view historical temperature data by day or month, store up to six months of records, and export data for analysis.

Powered by a CR2477 battery, the device offers long-term, low-maintenance operation. When connected to a compatible Zigbee hub, it can trigger smart home automations such as activating heaters, pumps, fans, or dehumidifiers based on custom temperature thresholds.

Technical Specifications:

Model: SONOFF SNZB-02LD

Product Type: Zigbee Temperature Sensor

Wireless Protocol: Zigbee 3.0

Probe Type: Stainless-steel probe

Probe Length: 1.5 m

Temperature Measurement Range: Approximately –40 °C to +115 °C

Waterproof Rating: IP65 (main unit)

Display: 2.2″ LCD screen

Power Supply: 3 V CR2477 battery

App Support: eWeLink (iOS / Android)

Compatibility: Zigbee 3.0 hubs and gateways

Installation: Wireless, battery-powered

Applications:

Water tanks and liquid temperature monitoring

Greenhouses and agricultural environments

Aquariums and fish tanks

Refrigerators and freezers

Indoor and protected outdoor temperature monitoring

Smart home temperature-based automation

Why Choose SONOFF SNZB-02LD?

 Accurate temperature measurement in liquids, enclosed spaces, or hard-to-reach areas
 IP65-rated for reliability in humid or splash-prone environments
 Built-in LCD for quick local readings plus app-based monitoring and export
 Battery-powered and Zigbee-enabled — no wiring required
 Integrates seamlessly into smart-home automation for temperature-controlled devices