Shelly Shelly H&T Gen3 Smart Temperature & Humidity Sensor — Black, e‑paper Display & USB‑C

The Shelly H&T Gen3 Black is a compact Wi‑Fi and Bluetooth temperature and humidity sensor with an e‑paper display, USB‑C power, low energy use, and fast Shelly chip performance.

Compact yet capable, the Gen3 H&T from Shelly monitors indoor temperature and humidity in real time and pushes alerts to your phone or smart home scenes. It combines a new responsive Shelly chip with 8MB memory, a low‑power e‑paper display and Type‑C power to give accurate environmental readings while preserving battery life. Use it as a standalone monitor or integrate it into Shelly automation to trigger fans, dehumidifiers, or notifications.

How accurate are the readings and how often do they update?

The H&T Gen3 delivers consistent ambient temperature and relative humidity readings and updates frequently over Wi‑Fi or Bluetooth for near real‑time monitoring. The device’s improved chip and 8MB memory help process measurements faster and store recent logs when needed for local access.

• Temperature and humidity measured with regular sampling intervals for responsive tracking.
• Wi‑Fi and Bluetooth connectivity ensures frequent data updates to the Shelly app.
• On‑device e‑paper shows the latest values without draining battery.
• Local memory buffer keeps recent readings during temporary network interruptions.

Can I use the Shelly H&T Gen3 to automate home devices like a bathroom fan?

Yes — the Gen3 is designed to integrate with other Shelly products so it can trigger automated actions when conditions change. For example, pair it with a Shelly Plus 1 wired to a fan to automatically reduce humidity after showers, or use it to trigger HVAC or dehumidifiers when set thresholds are exceeded.

• Create scenes in the Shelly Smart Control app based on humidity or temperature thresholds.
• Link to Shelly relays (e.g., Plus 1) to control fans, vents, or other appliances.
• Receive push notifications before conditions become uncomfortable or risky.
• Flexible scheduling and conditional automation for different rooms and times.

What power options and display features does this model include?

The H&T Gen3 uses a Type‑C USB port for convenient power and offers very low battery consumption alongside an e‑paper display that preserves charge. The e‑paper keeps readings visible without continuous power draw, while the built‑in clock adds useful context to measurements.

• Type‑C USB power makes recharging and wired operation simple and modern.
• Low‑consumption e‑paper screen shows temperature, humidity, and time with minimal energy usage.
• Built‑in clock timestamps readings and assists with scheduled automation.
• Optimized power profile extends battery life when used wirelessly.

How does it connect to the Shelly app and what notifications can I expect?

The Shelly Smart Control app pairs with the H&T Gen3 over Wi‑Fi or Bluetooth, letting you view live readings, configure alerts, and build automation scenes. Push notifications can be set to warn you about high humidity, temperature drifts, or when predefined thresholds are crossed.

• Easy device setup through the Shelly app with guided pairing steps.
• Create personalized alerts for temperature and humidity changes.
• Remote access to live data and device settings from anywhere.
• Combine multiple Shelly devices into complex automation scenes.

Who is this for: The Shelly H&T Gen3 Black is ideal for homeowners, renters, and small business operators who want reliable indoor environment tracking with smart automation potential. It’s especially useful in nurseries, bathrooms, basements, and any spaces where humidity or temperature control matters. Install it as a discreet monitor on shelves or walls, link it to other Shelly devices to automate ventilation, or carry it between rooms for flexible monitoring.