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Sonoff SNZB-02P temperature humidity control sensor 4.5 cm
Monitors indoor temperature and humidity with ±0.2°C accuracy and sends comfort alerts via a Zigbee 3.0 hub
- Product nameSNZB-02P SONOFF SNZB-02P 1 PACK
- voltage120 volts
- location/usageTabletop
- finishBlack
- styleContemporary
- materialPlastic
- High accuracy with Swiss sensor at ±.2°C and ±2%RH
- Updates readings every 5 seconds for latest changes
- Zigbee 3.0 hub required for smart-home integration
- Comfort alerts sent to phone when limits exceeded
- Up to half-year free cloud storage with data export
Zigbee 3.0 temperature and humidity sensor
The Sonoff SNZB-02P is a compact indoor thermometer and hygrometer that reports temperature within ±0.2 °C and humidity within ±2 %RH. It connects to a Zigbee 3.0 hub such as SONOFF iHost, NSPanel Pro, ZB Bridge Pro, ZBDongle-E, Echo 4th Gen or SmartThings Hub V3. The device is designed for tabletop placement and suits homeowners who want remote climate monitoring and comfort alerts on their phone.
Continuous monitoring with five-second updates
Measurements refresh every five seconds, giving a near real-time view of changing conditions rather than a single snapshot. Temperature and humidity history is stored in the cloud for up to six months and can be queried by day, month or half-year intervals, with export available for further analysis. Alerts trigger immediately when readings leave a user-defined comfort range. The sensor is not suited for installations that require wired power or direct Wi-Fi connectivity without a Zigbee hub.
Plastic tabletop unit with CR2477 battery
The white plastic housing measures 4.5 cm by 4.5 cm by 1.7 cm and weighs 0.04 kg, allowing discreet placement on any flat surface. A single CR2477 cell provides up to four years of operation based on SONOFF laboratory testing, reducing maintenance frequency. No mounting hardware is included, so the sensor remains portable and can be moved between rooms as needed.
Highlights
- High accuracy with Swiss sensor at ±.2°C and ±2%RH
- Updates readings every 5 seconds for latest changes
- Zigbee 3.0 hub required for smart-home integration
- Comfort alerts sent to phone when limits exceeded
- Up to half-year free cloud storage with data export
Specifications
| Model | SNZB-02P |
|---|---|
| Product name | SNZB-02P SONOFF SNZB-02P 1 PACK |
| voltage | 120 volts |
| location/usage | Tabletop |
| finish | Black |
| style | Contemporary |
| material | Plastic |
| weight | 0.04 kilograms |
| description | SNZB-02P 1 PACK, SONOFF, SNZB-02P, CR2477 |
| notes | SNZB-02P 1 PACK |
| features | Motion Sensor |
| type | Motion Sensor |
| size dimensions | 4.5 cm x 4.5 cm x 1.7 cm |
Questions about this item
Does the CR2477 battery last long enough for continuous daily monitoring?
The manufacturer states up to four years of battery life from a CR2477 cell under laboratory conditions; actual duration depends on reporting frequency and environment.
Which Zigbee 3.0 hubs are confirmed to work with this sensor?
Compatible hubs include SONOFF iHost, NSPanel Pro, ZB Bridge Pro, ZBDongle-E, Echo 4th Gen and SmartThings Hub V3; any hub following the Zigbee 3.0 protocol should pair.
Can the sensor stay accurate when placed near older thermostats or heating units?
The Swiss-made sensor maintains ±0.2 °C temperature and ±2 % RH accuracy with 5-second refresh, independent of nearby legacy climate devices.
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