Shelly BLU H&T ZB – outdoor humidity and temperature sensor, Bluetooth, Zigbee, ivory

The Shelly BLU H&T ZB is a water- and dust-resistant wireless temperature and humidity sensor that supports both Bluetooth and Zigbee connectivity. It is ideal for indoor comfort monitoring and automation: based on measured values, it can trigger scenes, send alerts, or control other Shelly devices.

Within the Shelly ecosystem, it works with a gateway (Shelly BLU Gateway or any Shelly Plus/Pro/Gen3/Gen4 device, excluding sensors). In a Zigbee network, it can be paired with any compatible Zigbee hub. The dual-radio connectivity ensures flexible placement and stable operation.

With IP54 protection and a long battery life of up to 3 years, it offers reliable, low-maintenance performance. In the Shelly Smart Control app, data can be viewed in real-time, with charts, history, and .CSV export options available for analysis.

About the Shelly Brand

Shelly is a leading manufacturer of retrofit smart home solutions that are easy to install. Its devices (relays, meters, sensors, controllers) support local access and flexible integration via the Shelly Smart Control app and a variety of open platforms.

Key Product Features

• Dual wireless communication: Bluetooth & Zigbee connectivity for flexible integration and stable operation.
• Accurate sensing: continuous monitoring of temperature and humidity.
• IP54 protection: resistant to splashes and dust for enhanced durability.
• Long battery life: up to 3 years using a CR2032 coin cell battery.
• Beacon mode (BTHome): Bluetooth broadcasting for presence detection and fast integration.
• Encrypted communication: secure wireless data transmission.

Smart Home Protocols & Platform Compatibility

• Bluetooth (Shelly BLU): requires a Shelly gateway (Shelly BLU Gateway or any Shelly Plus/Pro/Gen3/Gen4 device – except sensors).
• Zigbee 3.0: compatible with Zigbee hubs (features may vary by hub); also contributes to network mesh stability.
• App & data: Shelly Smart Control – real-time display, charts, history, and .CSV data export.

Smart Features

• Real-time status: temperature and humidity display and data querying.
• Automation: scene triggering based on thresholds (e.g., adjust heating/cooling or start a dehumidifier/extractor fan).
• Notifications: app alerts when limits are exceeded (with a Shelly gateway).
• History & export: multi-day/month historical data and .CSV download for analysis.

Technical Specifications

• Product: Shelly BLU H&T ZB
• Model: SBHT-203C
• Measured values: temperature, humidity
• Wireless connectivity: Bluetooth (BTHome beacon, encrypted), Zigbee 3.0
• Protection rating: IP54 (resistant to splashes and dust)
• Power supply: 1× CR2032, 3V coin cell battery (included)
• Battery life: up to 3 years (depending on usage)
• Use with Shelly app: requires Shelly BLU Gateway or any Shelly Plus/Pro/Gen3/Gen4 (excluding sensors)
• Use with Zigbee: compatible Zigbee hub required
• Package contents: sensor, CR2032 battery, quick start guide
• Note: for outdoor use, only place in sheltered locations; do not expose to continuous moisture or rain (only protected against splashing and dust).

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Available documents are organized by manufacturer in folders on Google Drive.

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