• Shelly HT Gen3
  • Shelly HT Gen3
  • Shelly HT Gen3
  • Shelly HT Gen3
  • Shelly HT Gen3
  • Shelly HT Gen3
  • Shelly HT Gen3
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Shelly

Shelly H&T Gen3. Smart Humidity & Temperature sensor with e-ink display (Open Box)

Shelly H&T Gen3. Smart Humidity & Temperature sensor with e-ink display (Open Box)

Gen 3 H&T Black_OB_AN

Condition: Open Box

Professionally inspected and tested by Digital Bay Tech to ensure proper operation and cosmetic condition. Final sale. No returns or exchanges.
Open Box units may include manufacturer warranty when applicable and/or a Digital Bay Tech limited replacement warranty for manufacturing defects.
See warranty details below.

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$19.50 USD
$38.99 USD $19.50 USD
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Next-generation smart temperature and humidity sensor with ultra-low power e-ink display.
Shelly H&T Gen3 delivers accurate climate monitoring, long battery life, and seamless integration with modern smart home systems — no hub required.

Why Shelly H&T Gen3?

Smarter climate monitoring, made simple

Shelly H&T Gen3 accurately tracks temperature and humidity changes while consuming extremely low power thanks to its e-ink display and upgraded Gen3 processor with 8MB of memory.

Ideal for homes, apartments, rentals, and professional installations, it helps prevent mold, dryness, and discomfort while enabling intelligent climate automation with other Shelly devices.

Key Features

  • No hub required – direct Wi-Fi connection
  • Equipped with Shelly Gen3 chip with 8MB of memory for improved performance
  • Matter-upgradable*
  • Ultra-low power e-ink display with built-in clock
  • Accurate temperature and humidity monitoring
  • Up to 1 year battery life (4 × AA batteries, not included)
  • USB-C port for faster setup and configuration
  • Embedded web server for local access and configuration
  • Wall-mountable design
  • Works with Shelly Smart Control app, Home Assistant, Alexa, and other platforms

* Matter support depends on firmware and ecosystem compatibility.

View full details

Common Use Cases

  • Home Climate Monitoring

    Monitor temperature and humidity in real time to maintain a comfortable and healthy indoor environment.

  • Mold & Moisture Prevention

    Detect high humidity levels early and trigger automations to prevent mold, condensation, and moisture damage.

  • HVAC Optimization

    Automate heating, cooling, or ventilation systems based on actual room temperature and humidity data.

  • Smart Home Automations

    Use temperature or humidity thresholds to trigger Shelly relays, fans, dehumidifiers, or alerts automatically.

  • Vacation & Second Homes

    Keep an eye on climate conditions remotely and receive alerts if temperature or humidity goes out of range.

  • Aging in Place & Comfort Monitoring

    Ensure stable and safe indoor conditions for seniors or people with health sensitivities without complex systems.

Functionalities

  • Wi-Fi Operated

    Connect Shelly H&T Gen3 to your Wi-Fi network. No HUB required!

  • Measures humidity

    Monitor changes in humidity levels to avoid dryness and mold growth.

  • Free data history

    Features up to 1 year of free data storage for analysis and statistics.

  • Bluetooth

    Quick inclusion via Bluetooth

  • Measures temperature

    Be aware of temperature fluctuations and maintain comfortable conditions.

  • Long Battery life

    Over 1 year of battery life and a USB type-C slot for continuous power.

Frequently Asked Questions

Does Shelly H&T Gen3 require a hub?

No. Shelly H&T Gen3 connects directly to your Wi-Fi network and works without a hub.

How long do the batteries last?

Up to 1 year, depending on update intervals, Wi-Fi signal strength, and usage.

Can I monitor temperature and humidity remotely?

Yes. You can view real-time readings and history using the Shelly Smart Control app or compatible platforms.

Can it be used in automations?

Yes. Temperature and humidity values can trigger automations, scenes, notifications, or control other Shelly devices.

Is it compatible with Home Assistant and other platforms?

Yes. It integrates with Home Assistant and other platforms via Shelly APIs, MQTT, and local control.

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

 Shelly App
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.
Shelly App
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms

Warranty

New Products

  • USA Pro Market Manufacturer Warranty: Lifetime manufacturer warranty (only if installed by a professional within USA) when purchased at Digital Bay Tech.

  • Retail Standard Manufacturer Warranty (included in purchase price): 2, 3 or 5 years manufacturer warranty covers only the hardware (corpus, mechanics, and display, if any) and does not cover consumables (battery) and accessories insofar as these are subject to exhaustion (decrease of their useful life) depending on the intensity of their use. Device malfunctions are only covered when device is used as described conditions within user manual (max loads, proper installation, etc.). Please check refund policy for further details.
  • Gen 1: 2 years.
  • Plus, Gen3, Gen4, Wave: 3 years.
  • Pro Line: 5 years.

Special Notes

  • Do It Yourself: Devices are technically user-installable in many locales, nevertheless consulting a licensed electrician to install shelly components is recommended; in addition to being licensed to work with electrical devices, they are also familiar with local building codes and regulations to keep your safety.
  • Manufacturer's Safety note: Each Shelly device generates heat under load. Do not combine two or more Shelly devices stacked on top of or beside each other in a confined space. There must be a minimum distance of 0.4 inch / 1 cm between them to allow for airflow.

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