Shelly
Shelly BLU H&T Black
Shelly BLU H&T Black
Low stock
A dust- and water-resistant Bluetooth sensor that accurately measures temperature and humidity.
*Requires a gateway to connect with the Shelly Smart Control app. Works with Shelly BLU Gateway or any Shelly Plus, Pro, or Gen3 device (excluding sensors).
Key features
- Detects and reports temperature and humidity (free data storage)
- IP54 rated — water and dust-resilient
- Battery: 1 × 3 V CR2032 (included)
- Long battery life — up to 3 years
- Encrypted communication (high-level security)
- Beacon mode (presence detection)
- No hub required — control via Shelly Smart Control app, BTHome protocol, or various platforms
- Integrates into automation scenarios and scenes
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Technical details
Technical details
Device identification
Name: Shelly BLU H&T
Model: SBHT-003C
Device SSID: –
BLE Model ID: 0x0003
Short description
Shelly BLU H&T is a compact Bluetooth sensor for monitoring humidity and temperature.
It features long battery life, splash and dust resistance, and provides real-time environmental data
for automation and safety scenarios.
Main features
- Long battery life
- Air temperature and humidity reporting
- Splash and dust-resistant
- Compact design
Use cases
- Climate control: Adjust HVAC systems based on temperature and humidity readings
- Mold prevention: Monitor humidity to avoid mold in basements and bathrooms
- Alerts & notifications: Warn about frozen pipes, excessive heat, or moisture
- Greenhouse optimization: Automate watering and ventilation for plant care
- Security enhancement: Detect unusual temperature changes (fire, flooding)
- Appliance control: Trigger dehumidifiers, humidifiers, or fans as needed
Device electrical interfaces
Battery-powered (internal, replaceable)
Connectivity
Bluetooth Low Energy (BLE)
Safety function
Not applicable
Supported load types
- Not applicable (sensor device)
User interface
Inputs: One push button
• Short press → reports current temperature (°C), humidity (%), and button event
• Hold 10s → pair with Bluetooth device
• Hold 30s → factory reset (only shortly after inserting battery)
Specifications
Specifications
Physical
Size (HxWxD): 37×37×10 mm / 1.46×1.46×0.39 in
Weight: 13 g / 0.44 oz
Mounting: On a flat surface
Shell material: Plastic
Color options: Black (C-0%; M-0%; Y-0%; K-100%); Mocha (C-0%; M-12%; Y-28%; K-12%); Ivory (C-3%; M-4%; Y-14%; K-8%)
Environmental
Ambient temperature: −20 °C to 60 °C (−5 °F to 140 °F)
Humidity: 0–100% RH
Electrical
Power supply: 1× 3 V battery (included)
Battery type: CR2032
Battery life: 3 years
Sensors
Humidity sensor: Yes
Temperature sensor: Yes
Radio
Bluetooth protocol: 4.2
Bluetooth RF band: 2400–2483.5 MHz
Bluetooth max RF power: < 4 dBm
Bluetooth range: Up to 30 m / 100 ft outdoors; up to 10 m / 33 ft indoors (depends on conditions)
Firmware capabilities
Encryption: AES (CCM mode)
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