Description
The SONOFF SNZB-02LD is a robust Zigbee 3.0 smart temperature sensor designed for accurate monitoring in water tanks, soil, greenhouses, aquariums, and other enclosed or splash-prone environments. Its 1.5 m stainless-steel probe allows precise measurement in liquids or hard-to-reach areas, while the IP65-rated main unit ensures reliability in humid or damp conditions. The built-in 2.2″ LCD screen displays real-time readings locally, and the device integrates seamlessly with Zigbee hubs for remote monitoring, historical data tracking, and automation of temperature-based smart-home routines. Powered by a long-life CR2477 battery, it offers convenient, cable-free installation for both indoor and protected outdoor locations.
Key Features
Zigbee 3.0 Connectivity
Works with SONOFF Zigbee Bridge, NSPanel Pro, ZBBridge-P/U, ZBDongle-E/P, Echo 4th Gen, and other compatible Zigbee 3.0 hubs.
External 1.5 m Stainless-Steel Probe
Enables temperature measurement in liquids, soil, enclosed spaces, and hard-to-reach locations.
IP65 Waterproof Rating
Resistant to splashes, humid or damp environments — suitable for kitchens, bathrooms, poolsides, or greenhouses. Avoid full submersion.
2.2″ LCD Display
Clear, local temperature display in °C/°F for easy monitoring without checking the app.
Historical Data Storage & Export
Track temperature trends by day, month, or up to six months via the eWeLink app; export data for analysis.
Long Battery Life
Powered by a CR2477 battery, ensuring long-term, low-maintenance operation.
Smart-Home Integration
Trigger devices like heaters, pumps, or dehumidifiers automatically based on temperature thresholds through your Zigbee hub and eWeLink app.
Technical Specifications
| Feature |
Detail |
| Protocol |
Zigbee 3.0 |
| Probe Length & Type |
1.5 m stainless-steel |
| Temperature Range (Probe) |
~ –40 °C to +115 °C |
| Waterproof Rating |
IP65 (main unit) |
| Display |
2.2″ LCD screen |
| Power |
Battery — 3 V (CR2477) |
| Compatible With |
Zigbee 3.0 hubs/gateways (eWeLink + others) |
| Use Cases |
Water tanks, pools, greenhouses, indoor/outdoor temperature monitoring, refrigerators/freezers, remote spaces |
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
