Shelly H&T Humidity/Temperature Sensor

The Shelly H&T is a compact Wi‑Fi humidity and temperature sensor designed for indoor monitoring. It measures relative humidity and ambient temperature with high accuracy and is powered by a CR123A battery, offering up to 18 months of operation. The device connects directly to a home Wi‑Fi network and stores historical measurements in the Shelly Cloud for long‑term review.

Advantages

Shelly H&T provides continuous wireless monitoring of humidity and temperature without the need for a hub, has an extended battery life of up to 18 months, and uploads recorded data to the Shelly Cloud so you can access history for up to a year. Its compact dimensions make it easy to place in apartments, offices, or utility rooms.

Suitable for

• Monitoring indoor humidity to prevent mold
• Tracking room temperature fluctuations
• Placement in living rooms, bedrooms, kitchens, basements
• Long‑term environmental logging and analysis

Key specifications

• Brand: Shelly
• Model: H&T (MPN 20194, EAN 3809511201947)
• Sensor types: Humidity and temperature
• Connectivity: Wi‑Fi (direct connection, no hub required)
• Power: CR123A battery, up to 18 months battery life
• Cloud: Free history storage in Shelly Cloud (up to 1 year)
• Dimensions (approx.): 45 mm x 35 mm

How to use

Install the CR123A battery, place the Shelly H&T in a location with free air circulation away from direct heat sources, and connect it to your local Wi‑Fi network using the Shelly Cloud mobile application. Once connected, configure measurement intervals and notifications in the app, and allow the device to synchronize historical data with your Shelly Cloud account.

Recommendations

For reliable readings, avoid placing the sensor near radiators, air vents, or windows that receive direct sunlight. Replace the CR123A battery when the app indicates low battery, and position the sensor at typical room height (about 1–1.5 m) to monitor conditions relevant to occupants.