Shelly BLU H& T ZB is a small, energy-efficient environmental sensor that accurately measures temperature and humidity, sending data in real time. It supports Bluetooth 5 (BLE) and Zigbee 802.15.4 connectivity, making it easy to integrate with modern smart home systems. The IP54-rated enclosure protects the device from dust and splashes, allowing it to be used in a variety of conditions, both indoors and outdoors.
Powered by a single CR2032 battery, the sensor can operate for up to 3 years without needing to be replaced. Its lightweight plastic construction and compact dimensions (37 × 37 × 10 mm) allow for easy installation on any flat surface. The sensor is available in three colors: black, mocha, and ivory.
The sensor automatically transmits information about air conditions, which can be used to control HVAC devices, humidifiers, dehumidifiers, or fans. It can also activate defined scenes, e.g., by turning on the heating when the temperature drops or ventilation when humidity rises. In addition, the user receives notifications when conditions exceed set thresholds, which helps prevent problems such as mold growth or frozen pipes.
The device is operated using a single button and LED, which allow for pairing, resetting, or checking current measurements. It is operated via the Shelly Smart Control app, but a compatible gateway is required for it to work, e.g., Shelly BLU Gateway or devices from the Shelly Plus, Pro, Gen3, and Gen4 series. When used in a Zigbee network, a compatible Zigbee gateway is required.
Shelly BLU H& T ZB guarantees secure data transmission thanks to encryption and is suitable for both home and specialized applications – from climate automation, flood or overheating protection, to greenhouse optimization. The device is the perfect addition to any smart home, offering precise measurements and reliable operation.
| Manufacturer | Shelly |
|---|---|
| Model | BLUHTZBI |
| Dimensions (H x W x D) | 37 x 37 x 10 mm / 1.46 x 1.46 x 0.39 inches |
| Weight | 13 g / 0.44 oz |
| Mounting | On a flat surface |
| Housing material | Plastic |
| Color | Ivory |
| Ambient temperature range | -20°C to 60°C / -5°F to 140°F |
| Ambient humidity | 0% to 100% RH |
| Power source | 1 x 3 V battery (included) |
| Battery type | CR2032 |
| Battery life | Up to 3 years |
| Humidity sensor | Yes |
| Temperature sensor | Yes |
| Protocol | Bluetooth 5 (LE) |
| Radio band | 2402 – 2480 MHz |
| Maximum RF signal power | < 8 dBm |
| Range | up to 10 m indoors / up to 30 m outdoors (depending on local conditions) |
| Zigbee protocol | 802.15.4 |
| Radio band | 2405 – 2480 MHz |
| Maximum RF signal power | < 8 dBm |
| Range | up to 10 m indoors / up to 30 m outdoors (depending on local conditions) |
| Processor (CPU) | EFR32MG27 |
| Flash memory | 768 kB |
| Compatibility | Shelly Plus / Gen3 / Gen4 series Shelly Pro series |
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