TH20 Elite - Temp & Humidity or Soil Moisture Smart Switch

R195 - R590


TH20 Elite and Th16 Origin monitors temperature and humidity in real-time. Once they reach your preset threshold or the device’s on/off state changes, you can receive a push notification on your phone.

TH Elite stores 6-Months of Temp & Humidity historical data, accurate to the hour.
Smart scenes supports setting triggers with Temperature, Humidity, On, Off and supports execution actions with On, Off, Invert.

TH Elite turns your traditional thermostat into smart and gives you an easy way to monitor the temperature and humidity.

The sensor connector has been upgraded to RJ9 which supports hot-plugging, making the connection more stable and reliable.

The RL560 sensor extension cable can connect the Sonoff temperature and humidity sensors to extend your device’s distance.

Support adding Sonoff devices to Home Assistant for control and automation through eWeLink add-on.



  • 20A/16A Max & Dry Contact Output- Support to connect 20A/16A Max high load, dry contact output.
  • Once setup, it works when the internet is down.
  • 6-Month Temp & Humidity Historical Data by Hours- Support to review the temp & hum history data by hour, day and month. Past 6-month history data can be exported in .xlsx format and accurate to hour.
  • Local Automatic Control- Support LAN control, automatic control is more reliable. You can set 8 automatic control programs for you to save electricity bills and create comfortable surroundings.
  • Voice Control and Query- Work with Alexa, Google Assistant, you can query temperature and humidity values by your voice.
  • TH20 ELEITE only: LCD Screen- Real-time monitoring of temperature and humidity data, the screen refreshes every 5 seconds.


*Cable tips must be soldered or crimped onto electrical lugs before being inserted into the device.

*Switches Require both live & Neutral Wire

NRCS and Icasa approved


Specifications - TH20 Elite

  • TH Elite 20AMP
  • Model: THR320D
  • THR320D Input/Output: 100-240V~50/60Hz 20A Max

Specifications - TH16 Origin

  • TH16 Origin: 16 Amp Peak
  • Model: THR316
  • THR316 Input/Output: 100-240V~ 50/60Hz 16A Max

Specifications - TH20 Elite & TH16 Origin

  • Dry contact: 5-30V, 1A Max
  • Casing material: PC V0
  • Wi-Fi: IEEE 802.11 b/g/n 2.4GHz
  • Color: White


NRCS product registration number: RCC #2302001

Compatible Sensor details:

THS01 Temp & Humidity Sensor

  • Sensor Type: Temperature & Humidity sensor
  • Connector type: RJ11 4P4C
  • Temperature Measuring Range: –40℃~+85°C
  • Humidity Measuring Range: 0~100%RH
  • Cable Length: 50cm

WTS01 Waterproof Temperature Sensor

  • Sensor Type: Waterproof temperature sensor
  • Connector type: RJ11 4P4C
  • High accuracy with a measuring range of up to +-0.5°C
  • Working Temperature: -55℃~+125℃
  • Cable Length: 150cm
  • The stainless steel probe is water-proof, corrosion-resistant and rust-proof

MS01 Soil Moisture Sensor

  • Sensor Type: Soil Moisture Sensor
  • Humidity Measuring Range: 0~100%RH
  • Operating Temperature Range: 0℃~60°C
  • Cable Length: 50cm
  • Waterproof Level: IP55
  • Size: 130mm x 30mm x 13mm
  • Sensor Type: Capacitive

RL560 Sensor Extension Cable

  • Conductor resistance: max.10Ω
  • Insulation resistance: min.5MΩ
  • Length: 5m
  • The RL560 sensor extension cable can connect the SONOFF temperature and humidity sensors to extend your device’s distance. THS01, DS18B20 can be extended to 60M, and MS01 Soil Moisture Sensor can be extended to 10M.
  • Please note that this product is prone to EMI, and should not be installed in the DB board.