Shelly BLU H&T ZB Black

Device identification

• Device name: Shelly BLU H&T ZB

• Device model: SBHT-203C

• Device Bluetooth ID: 0x0011

Short description

Shelly BLU H&T ZB is a smart humidity and temperature sensor. It has Zigbee and Bluetooth connectivity ensuring a secure connection with an extended battery life.

Main features

• Long battery life

• Air temperature and humidity reporting

• Splash and dust-resistant

• Compact size

Use cases

• Climate control: Adjust the heating, ventilation, and air conditioning system based on current temperature and humidity levels to maintain a comfortable indoor environment.

• Prevent mold and mildew: Monitor humidity levels to prevent the growth of mold and mildew in spaces like basements and bathrooms. The Shelly BLU H&T can activate ventilation or dehumidification devices when needed.

• Alerts and notifications: Receive alerts or notifications when the temperature or humidity reaches predefined thresholds and prevent issues like frozen pipes in cold weather or excessive moisture.

• Optimizing greenhouse conditions: Optimize conditions for greenhouse plants by adjusting watering systems and ventilation based on humidity and temperature levels.

• Security enhancement: Increase your home protection by detecting unusual temperature changes that might indicate fire or flood.

• Appliance control: Adjust operation of dehumidifiers, humidifiers, and fans based on the current temperature and humidity conditions.

Connectivity

• Bluetooth

• Zigbee

User interface

Inputs

• One push button

  • One press: Sends the currently measured ambient temperature in °C, relative humidity in %, and a button-pressed event.

  • Four quick presses or 10-second press: Initiates pairing with another Bluetooth device.

  • Five quick presses: Activates Zigbee pairing.

  • A 30-second press: Performs a factory reset (possible only shortly after inserting the battery).

Outputs

• One single-color (red) LED

  • One flash: The Device sends the current ambient temperature, humidity, and button-pressed event.

  • One flash every 2 seconds for 1 minute: The Device enters Bluetooth pairing mode for 1 minute.

  • Two flashes every 2 seconds for 1 minute: The Device enters Zigbee pairing mode for 1 minute.

  • One long flash: The Device performs a factory reset.

What are the differences between the different generations of Shelly products?

Each new generation adds more power, memory, and features:

Gen 1 offers basic control;

Gen 2 (Plus Series, Mini Series, Pro Series) adds Bluetooth, scripting, and better security;

Gen 3 improves performance, adds Matter (starting from firmware version 1.6.0 or newer) and advanced monitoring;

Gen 4 offers multi-protocol connectivity, featuring Wi-Fi 6, Bluetooth, Zigbee, and Matter.

Can I control the device via Bluetooth?

No, the protocol is used only for device inclusion, allowing for quick and easy setup through the Shelly Smart Control app.

For bluetooth control it is required to have another Bluetooth device such as Shelly BLU Button or Shelly BLU Motion to interact.

Additionally, Shelly devices can function as a BLE gateway, bridging Shelly BLU devices to your Wi-Fi network.

Is it possible to use the device without a hub?

Yes, Shelly devices (except for Wave devices) operate independently without the need for a hub. They connect directly to your Wi-Fi network, and you can control them via the Shelly Smart Control app, web interface, or through integrations with platforms like Google Home, Alexa, Home Assistant and Samsung SmartThings.