SONOFF TH10/TH16: Temperature And Humidity Monitoring WiFi Smart Switch


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【Automatic RH/Temp Control With Time Period】Connect TH with a Temperature/Humidity sensor to monitoring the value, and automatically turn on/off the device to provide you a suitable temperature and humidity.
【Easily DIY Your Smart Home Appliances】Connect TH directly to the middle of the power supply and the appliance which needs the feature of temperature and humidity control to quickly make your ordinary appliances smart without buying a new smart one.
【Fully Functional】TH has all the most basic functions, like remote APP control, LAN control, timing schedule, share control, etc.
【Smart Scenes】Trigger other smart devices when the temperature and humidity reach the threshold value or the device switches on or off.
【Voice Control】Compatible with Amazon Alexa, Google Assistant, SmartThings, and Alice. Just speak out your command, the smart device can do on/off as you say, and check the temperature and humidity for you.

Note: TH10/TH16 has been discontinued, we have released the upgraded version-TH Elite, 20A Max. Load and dry contact output. Click to learn more about TH Elite.

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Sonoff TH10/TH16 is a wireless temperature and humidity monitoring switch which can remotely monitor and set temperature and humidity range to turn on/off connected appliances through the iOS/Android APP eWeLink. Just as the name indicates, the Sonoff TH temperature and humidity monitor device supports two maximum current supply specifications: 10A or 15A.

Sonoff TH10/ TH16 remote temperature monitor and wireless humidity monitor WiFi switch supports presetting the range for temperature or humidity. When the temperature or humidity of your home environment falls within the range, it will automatically turn on or off the connected devices.

Sonoff TH10/ TH16 supports four kinds of temperature monitor and humidity monitor sensors, mentioned below:

Si7021(wiki) Highly Recommended!

The sensor should be plugged into the smart switch before power-on. It is not advised to plug or unplug the sensor after power-on. DS18B20 is waterproof, which can only measure temperature. Other sensors can measure both temperature and humdity.

With the eWeLink app, users can create simple conditional statement (Smart Scene) to trigger on/off other smart devices.  This means users can use Sonoff TH10 or Sonoff TH16 with Si7021, AM2301, DS18B20 to detect temperature/humidity, and then set specified temp. or hum. ranges as conditions to trigger on/off other smart devices in the same account, such as Sonoff BASICR2, BASICR3, RFR2, RFR3, Sonoff SV. This device works perfectly with electric fan, air conditioner, humidifier, smart fish tank, watering system, etc.

The sensor extension cable can connect the SONOFF temperature and humidity sensors to extend your devices to distance of 60m, suitable for SONOFF DS18B20, Si7021 and AM2301 temperature & humidity sensor. AM2301 can be extended to 60M, DS18B20 can be extended to 8M, SI7021 can be extended to 60M.

Si7021 Sensor

  • Temperature Measuring Range: –40℃~+85°C
  • Humidity Measuring Range: 0~100%RH
  • Storage Temp.: –65℃~+150°C
  • Operating Voltage: 2.2-3.6V
  • Weight: 26g
  • Length: 0.5m

AM2301 Sensor

  • Temperature Measuring Range: -40℃~+80℃
  • Humidity Measuring Range: 0~99.9%RH
  • Power Supply: 3.3-5.2V DC (5V recommended)
  • Temperature Sensor Type: Resistive
  • Humidity Sensor type: Capacitive
  • Weight: 22g
  • Length: 0.5m

DS18B20 Sensor

  • Type: Waterproof temperature sensor
  • Probe: Stainless steel temperature probe
  • Temperature Measuring Range: -55℃~+125℃
  • Power Supply: 3.0-5.5V
  • Weight: 26g
  • Length: 1m

Sensor Extension Cable

  • Insulation resistance: Min. 500mΩ
  • Conductor resistance: Max. 5Ω
  • Certification: RoHS
  • Length: 5m cable length & Max. 60m extendable length.
  • Application:Suitable for SONOFF DS18B20, Si7021 and AM2301 temperature & humidity sensor, AM2301, DS18B20, SI7021 can be extended to 60M.


Additional information


Product Type

Wi-Fi Smart Switch with Temp. & RH. Monitoring

Input voltage

100~ 240V AC

Input current

Max 10A /15A

Max. Power

2200W(10A) /3500W(15A)


5%-90%RH, Non-condensing

Operating Temperature


Wireless Standard

802.11 b/g/n

Security Mechanism


Enclosure Material

Fire-retardant ABS V0


114*51*32 (mm)

Supported temperature, humidity sensors

Si7021, AM2301, DS18B20

Switch Channel


DIY Mode


Works With

, , ,

Certified Compliance


Customer Reviews

Based on 6 reviews
Loïc Bouilly
Sensor is difficut to connect

The TH10/TH16 is too big for me.
The functionality is ok -> He works for me like automatic interrupt for VMC(mechanical ventilation system).
But the sensor is too difficult to connect properly. The connection is done through a jack connector, but this jack not work every time.
Need to remove/move for getting the connection.

Gilbert Chadefaux

Petit problème ce TH16 ne reconnait aucun des deux capteurs ( MS01 et DS18B20 ) que je possède

Not dependable

Inability to calibrate sensor that is off by 5-7 degrees and 8-10% humidity (really?). Relay remains in stuck on or stuck off position about 80% of the time, until “nudged” by phone app. The app constantly logs you off several times a day. The use of the sensor extension cord (optional) renders the sensors (temp/rH and soil moisture) useless as they simply do not work.

Other than that, it’s the best, cheapest, sensor/relay you can buy. I highly recommend it if you do not require any reliability.

Reliability and Functionality Issues - Otherwise Great Product

We really appreciate having a thermostatic WiFi controller, but we have had several temperature sensors not work out of the box. Also, it would be great if ITEAD would add a datalogging function. It is nice to be able to see the instantaneous temperature, but a graph of the temperature over time would provide much more useful information and seems like it would be an easy addition since you already have all of the temperature data. Please let us know if you can add this feature.

Abdulkarim Ali
Does not work with extended wire

I tried to you the extend wire with the temperature sensor but it does not work i wait more than 2mis but there is not temperature indication

Great little automated waterproof temperature probe controlled relay/switch.

I like this automated sensor switch. It only has one mounting slot for a screw. The wire cover/clamp is a weak point as only wires are clamped - cable not clamped - could be pulled free, so clamp the cable to the mounting surface when installed. It fills my need to sense temperature and control a heater. The app will send me notifications when it changes on/off or if it stops communicating. The temperature probe specs say it is waterproof. Two models (probe is the only difference I think), so order the right one. I will buy it again.

SONOFF TH10/TH16: Temperature And Humidity Monitoring WiFi Smart Switch
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