Sonoff has recently launched two new sensors: the SNZB-02LD, a temperature sensor with an external probe, and the SNZB-02WD, a temperature and humidity sensor. Both are priced the same and feature an LCD display, but they differ in functionality and ideal applications. This article provides a comprehensive comparison to help you choose the right sensor for your smart home.
Key Features
Sonoff SNZB-02LD (Temperature Sensor with Probe)
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Measures temperature with high precision using an external probe
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LCD display with backlight
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Zigbee 3.0 connectivity
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IP65-rated: water and dust resistant
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Ideal for refrigerators, outdoor areas, aquariums, and greenhouses
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Sonoff SNZB-02WD (Temperature & Humidity Sensor)
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Measures both temperature and humidity
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LCD display with comfort icons
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Zigbee 3.0 connectivity
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IP65-rated: water and dust resistant
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Perfect for bedrooms, offices, and storage rooms
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Comparison Table
| Feature | SNZB-02LD (Temp + Probe) | SNZB-02WD (Temp + Humidity) |
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| Measurement | Temperature only | Temperature and Humidity |
| External Probe | Yes | No |
| Humidity Measurement | No | Yes |
| LCD Display | Yes, with backlight | Yes, with comfort icons |
| Zigbee 3.0 Connectivity | ✅ | ✅ |
| IP65 Rating | ✅ | ✅ |
| Ideal Use | Extreme or technical environments | Indoor comfort monitoring |
| Price | $17.90 USD | $17.90 USD |
Which Sensor Should You Choose?
✅ Choose the SNZB-02LD if you need:
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Precise temperature measurement in extreme conditions (e.g., refrigerators, outdoor areas)
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An external probe for specific monitoring (e.g., aquariums, greenhouses)
✅ Choose the SNZB-02WD if you need:
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To monitor both temperature and humidity for comfort
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A sensor for indoor environments like bedrooms or offices
Real-World Applications
SNZB-02LD (with Probe):
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Monitoring temperature in restaurant refrigerators
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Climate control in greenhouses
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Ensuring stable temperatures in aquariums
SNZB-02WD (with Humidity):
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Maintaining comfort levels in bedrooms
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Humidity control in storage rooms
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Environmental monitoring in offices
💸 Pricing and Purchase Links
Both sensors are available at the same price on Sonoff’s official store:
Exclusive Discount Coupon
As a token of appreciation for reading this far, here’s an exclusive discount code for your purchase:
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Coupon Code:
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Discount: 10% off your total purchase
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Valid at: itead.cc
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Note: Limited-time offer. Apply the code at checkout to receive your discount.
Conclusion
Both the SNZB-02LD and SNZB-02WD sensors offer excellent value for their price. Your choice depends on your specific needs.
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For precise temperature monitoring in specific environments, opt for the SNZB-02LD.
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For comprehensive indoor climate monitoring, the SNZB-02WD is the better choice.
Enhance your smart home setup by selecting the sensor that best fits your
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