Sonoff TH Origin 16Amp Smart Switch


In stock


Sonoff TH Origin 16Amp Smart Switch: a Temperature and Humidity monitoring WiFi smart switch, this switch does not have a LCD screen, like the TH ELITE. The Origin also does not have a Dry Contact Output. (Dry contact outputs act as relay triggers to turn high Amp equipment on on off – not very applicable to small grow spaces)

The TH Origin interfaces with the eWeLink home automation smartphone app, allowing you to monitor and automate your grow area, or other spaces like your home or office.

It can be programmed from the app to provide current (electricity) to equipment in many ways…

  • Schedules and Timers (Even schedules with 100’s of short ON and OFF cycles per day – as is necessary when doing aeroponics)
  • “Scenes” can also be set up, using data from the sensor that is plugged into the TH Elite – when certain conditions are met, the switch turns ON or OFF, e.g: IF Temperature sensor reads more than 28 degrees, turn Fan ON.
  • You can use the data from the TH Origin to control other Sonoff smart switches (even ones that work on the Zigbee protocol). Data from Zigbee sensors can also turn the TH Origin switch on or off.


  • No system is perfect – always monitor your automation to ensure that your plants aren’t in danger!
  • Not all electrical equipment is suitable for remote operation – some may “light up” (Power up) when its smart switch engages (turns ON), but it may still need a person to press a button on the device, or its remote, before it will actually start to OPERATE.
  • Sensors for the TH Origin are SOLD SEPARATELY
  • This is the 16Amp version – do not wire up equipment of more than 16Amp!
  • The sensor connector has been upgraded to RJ11 which supports hot-plugging, making the connection more stable and reliable.

Sonoff TH Origin Wiring


  • 16A Max load
  • 6 Months of Temperature and Humidity Historical Data by Hour. Data can be exported in .xlsx format and is accurate to an hour.
  • Local Automatic Control, Support’s LAN control. You can set up 8 automatic control programs for you to save on electricity bills or create a comfortable environment.
  • Voice Control works with Alexa and Google Assistant.
  • 5 Second refresh interval.


  • TH16 Origin: 16 Amp Peak
  • Model: THR316
  • THR316 Input/Output: 100-240V~ 50/60Hz 16A Max
  • Casing material: PC V0
  • Wi-Fi: IEEE 802.11 b/g/n 2.4GHz
  • Color: White
  • Dimensions: 98mm x 54mm

Compatible Sensor details:

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.

THS01 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

DS18B20 Sensor

  • Sensor Type: Waterproof temperature sensor
  • Connector type: RJ11 4P4C
  • Working Temperature: -55℃~+125℃
  • Length: 50cm

MS01 Sensor

  • Sensor Type: Soil Moisture Sensor
  • Humidity Measuring Range: 0~100%RH
  • Operating Temperature Range: 0℃~60°C
  • Cable Length: 50cm

RL560 Sensor Extension Cable

  • Conductor resistance: max.10Ω
  • Insulation resistance: min.5MΩ
  • Length: 5m cable length & Max. 60m extendable length.