Description
The Shelly H&T Gen3 Black is a professional-grade, wireless temperature and humidity sensor. Released as part of the “Gen3” lineup, it features a significant hardware boost over previous models, making it faster, more reliable, and capable of more advanced smart home integrations.
The “Black” version specifically refers to its sleek Matte Black finish, which is often preferred for modern or dark-themed interiors.
Key Hardware Upgrades (Gen3)
- New Shelly Chip: It is powered by the ESP-Shelly-C38F processor with 8MB of flash memory. This is double the memory of the “Plus” series, allowing for much faster responsiveness and smoother firmware updates.
- E-Paper (E-Ink) Display: It uses a high-contrast, low-power display (similar to a Kindle). This allows the screen to stay “on” 24/7 with your temperature and humidity readings without draining the battery.
- Integrated Clock: Unlike older versions, the Gen3 display also shows a digital clock (synchronized via NTP), making it a functional desk or wall accessory.
Power Options
One of the most versatile aspects of the H&T Gen3 is how you can power it:
- Batteries: It runs on 4 x 1.5V AA batteries (not included). Due to the energy-efficient e-paper screen, batteries can last up to 1 year.
- USB-C Port: It features a built-in USB Type-C slot. If you plug it into a permanent power source, the device stays “always-on” and reports data to your app every 5 minutes (compared to the longer intervals used in battery mode to save power).
Technical Specifications
| Feature | Specification |
| Connectivity | Wi-Fi (2.4 GHz) & Bluetooth (for easy pairing) |
| Sensors | Precision Temperature & Humidity sensors |
| Display | Large E-paper Graphic Display |
| Local Data Storage | Up to 1 year of free data history in the Shelly Cloud |
| Bluetooth Gateway | Acts as a bridge for other Shelly BLU Bluetooth devices |
| Matter Support | Engineered to be Matter-upgradable (via firmware update) |
| Mounting | Includes a detachable stand; also wall-mountable |
Smart Home Use Cases
- Humidity Control: Automatically trigger a Shelly 1 connected to your bathroom extractor fan if the humidity rises above 70%.
- Nursery Monitoring: Keep a precise eye on a baby’s room and get an alert on your phone if the temperature drops below a set threshold.
- Smart Heating: Use it as an external thermostat to trigger your boiler (via a Shelly relay) based on the temperature in the middle of the room rather than right next to a radiator.
Note: The “Matte Black” finish is identical in function to the “Mocha,” “Ivory,” and “White” versions—the only difference is the aesthetic color of the plastic shell.
Note: Whilst the Shelly configuration is mostly DIY, any electrical work must be done by a registered electrical contractor and we recommend Straton Electrical.
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