Sonoff TH Elite 20A Smart Temperature and Humidity


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Introducing the Sonoff TH Elite, a cutting-edge smart switch tailored for efficient geyser control and advanced temperature and humidity monitoring. Designed for geysers under 200 liters, this upgraded version of the Sonoff TH16 leverages ESP32 technology to transform your conventional thermostat into a smart hub. With a robust 20A capacity, dry contact output, and a user-friendly LCD screen, the TH Elite not only offers real-time monitoring but also provides detailed historical data for up to 6 months. Seamlessly integrate with Home Assistant, control with voice commands through Alexa and Google Assistant.

Sonoff TH Elite


Upgrade your geyser control with the Sonoff TH Elite, a smart temperature and humidity monitoring switch designed for geysers less than 200 liters. With a powerful 20A capacity, dry contact output, and an intuitive LCD screen, the TH Elite redefines your geyser management experience.

As the enhanced version of the Sonoff TH16, this ESP32-based switch transforms your traditional thermostat into a smart and easy way to monitor temperature and humidity. Connect high-load equipment like geysers and electric floor heating, and enjoy real-time monitoring with the LCD screen refreshing every 5 seconds.

The TH Elite isn’t just about instant control; it’s a comprehensive solution. Receive push notifications on your phone when temperature or humidity reach your preset thresholds or when the device’s on/off state changes. Explore 6-months of historical data, enabling accurate analysis by the hour. Set smart scenes for automated triggers and actions, making your environment comfortable and energy-efficient.

Seamlessly integrate with Home Assistant through the eWeLink add-on and enjoy voice control with Alexa and Google Assistant. The upgraded RJ9 sensor connector ensures stable and reliable connections. Extend your device’s reach using the RL560 sensor extension cable, allowing THS01 and DS18B20 sensors to stretch up to 60 meters, and MS01 Soil Moisture Sensor up to 10 meters.

Key Features:

  • 20A Max & Dry Contact Output: Connect high-load equipment effortlessly.
  • LCD Screen: Monitor temperature and humidity in real-time, with a 5-second refresh rate.
  • 6-Months Temperature & Humidity Historical Data: Review data by the hour, day, and month.
  • Local Automatic Control: Set up to 8 automatic control programs for energy savings.
  • Voice Control and Query: Interact with Alexa and Google Assistant using voice commands.
  • Compatible with THS01, WTS01, MS01, RL560.

Please note: Cable tips must be soldered or crimped onto electrical lugs before insertion.


  • Model: THR320D
  • Input/Output: 100-240V~50/60Hz 20A Max
  • Dry Contact: 5-30V, 1A Max
  • Casing Material: PC V0
  • Wi-Fi: IEEE 802.11 b/g/n 2.4GHz
  • Color: White