SONOFF TH Elite Smart Temperature and Humidity Monitoring Switch


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【20A Max & Dry Contact Output】 Support to connect 20A Max high load, dry contact output.
LCD Screen】Real-time monitoring of temperature and humidity data, the screen refreshed every 5S.
【6-Month Temp & Humi 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.

Note 1: THS01 and WTS01 are the sensors of RJ9 jack, just plug into TH Elite to use.  MS01 comes with a free RJ9 adapter to fit for TH Elite.
Note 2: The RL560 is the new sensor extension cable of RJ9, it can connect the SONOFF temperature and humidity sensors to extend your device’s distance.  WTS01, THS01 can be extended to 60M, and MS01 soil moisture sensor can be extended to 10M.
Note 3: If you already have the 2.5mm Audio jack sensor (AM2301/DS18B20) and want to use it with the new TH Elite, you can click to buy the RJ9 adapter.

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SONOFF TH Elite is a Smart Temperature and Humidity monitoring switch based on ESP32. With an LCD screen, TH Elite keeps monitoring the temperature and humidity in real-time, once they reach your preset threshold or the device's on/off state changes, you will receive the push notification on the phone. Support to connect 20A Max high load equipment like electric floor heating. You can replace your dry contact outputted traditional thermostat with TH Elite, to control the combi boiler or any other systems controlled by the ordinary switch. TH Elite support to review 6-Month Temp & Humi historical data accurate to the hour. In the smart scene, temperature, humidity, on, off support setting as the trigger, on, off, invert as execute actions. Support adding SONOFF devices to Home Assistant for control and automation through eWeLink add-on. TH Elite turns your traditional thermostat into smart, automates your irrigation system, and gives you an easy way to monitor the temperature and humidity.

SONOFF TH Elite supports three kinds of temperature monitor and humidity monitor sensors—THS01 Temp & Humi Sensor, WTS01 waterproof Temp sensor, and MS01 Soil Moisture Sensor. The sensor connector is upgraded to RJ9, supporting 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. THS01, WTS01 can be extended to 60M, and MS01 Soil Moisture Sensor can be extended to 10M.

THS01 Sensor

  • Sensor Type: Temperature & Humidity sensor
  • Connector type: RJ9 4P4C
  • Temperature Measuring Range: –40℃~+85°C
  • Humidity Measuring Range: 0~100%RH
  • Cable Length: 50cm

WTS01 Sensor

  • Sensor Type: Waterproof temperature sensor
  • Connector type: RJ9 4P4C
  • WorkigTemperature: -40℃~+115℃
  • Length: 150cm

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.


Additional information

Weight N/A
Dimensions N/A
TH Elite

16A, 20A



THR316D Input/Output

100-240V~ 50/60Hz 16A Max

THR320D Input/Output

100-240V~50/60Hz 20A Max




IEEE 802.11 b/g/n 2.4GHz

Dry contact

5-30V, 1A Max

TH Elite Working Humidity


TH Elite Working Temperature

-10°C~40°C (14℉~104℉)

Supported Sensor

THS01, DS18B20, MS01

THS01 Working Temp


THS01 Humi Measuring Range


DS18B20 WorkigTemp


MS01 Humi Measuring Range


MS01 Operating Temp Range


RL560 Conductor Resistance


RL560 Insulation Resistance




Security Mode


Works with

Amazon Alexa, Google Assistant

Casing material


Product Size




Customer Reviews

Based on 33 reviews
Great product but no seamless way to have external switch

It's great product but since it's positioned to be installed inside the electrical panel, the screen and on/off button are useless.
There should be a seamless way to link another Sonoff switch with this device and work in sync i.e. to have a miniR4 or TX Ultimate that will act as switch of the TX Elite switch and work in sync (not through scenes).
Another option would be to have a wired product that can be used as interface for TH Elite to show the temperature and have a switch.

Regarding what you are talking about, it would be a request, we already forwarded it to our technical department, and they will double-check if the device can have an external switch or not in the future.


folosesc deja 20 de buc TH ELITE de 16A si 20A, si toate se comporta exceptional !

Sotos garas
Loses contact with the temperature sensor

Very often loses contact with the temperature sensor and I have to unplug the clip and the sensor from it s position to start reading again
What am I doing wrong?

paolo urciuoli
Too many problems!

There are several problems I encountered:

I think there is a logical error in the functioning with the automation activated with a time interval (e.g. 09.00 - 11.00 every day set on a temperature between 15 and 16 C°): at 09.00 the automation is activated correctly by turning on the device, but at 11.00 - if the TH Elite is on at that moment, when the time expires the device will stay on indefinitely! (it doesn't even turn off when the temperature exceeds 16 C°!). The only way to be sure that at the end of the period indicated above the TH switches off, is to insert a further time interval immediately following (e.g. from 11.01) which, with the appropriate temperature parameters, can switch off the device, but I believe that this method is completely unfeasible, it would instead be appropriate to be able to decide within the parameters of the automatism, which state to assume at the end of the indicated period (on/off/invert/current state).
I discovered this, which I believe could be a malfunction, from a client of mine who intended to automate a bread-making process that develops in several phases with different temperatures for a total period of 3 days. What should I propose to my customer, to switch to another brand?

Management and display on eWeLink needs to be thoroughly reviewed:
first of all, when the display in "automatic" mode is active, there is no display of the device's ignition status, this is a very serious fault!
In the same way but on the contrary, if you are in "normal" mode there is no indication of whether the automatism is active or inactive (almost as serious as the previous one!)
The possibility of inserting more than one period of the automation already exists, but the activation/deactivation and naming of each period must be added, furthermore the active periods with the relative parameters must be shown on the main screen of the device, also allowing more access direct and facilitated for the modification of the parameters themselves.

Compared to the previous points, it is proposed to consider the simultaneous management and visualization in a single screen of the two different "managements" (automation/no automation), with which everything could be clearer and with more immediate operability.

eWeLink Web Problems:
several months have passed and the management of the TH Elite still doesn't work correctly in the scenes. At first the device was not recognized (next to the trigger line appeared "Temporarily not supported"); the problem was solved after a long time, but then another one immediately appeared: when using the TH Elite as a trigger eWeLink Web does not allow saving the scene! (against the subscription paid by me, this problem reported several times has not yet been resolved, making it effectively impossible to use it via the Web!).

Very serious: in the App there are 9 automatic scenes, in the web application I find only 5! Problem reported.

The official advertising also viewed with video presents eWeLink Web as something that allows greater possibilities than the App, but in reality, with the exception of the Cast service (Beta!), there are fewer possibilities for managing the "time", "timer" and "cyclic timer", and the management of the parameters of each device is in deficit compared to the Android version.

Finally, I don't understand why there is still not even a SONOFF device powered by 230 Volts (Eg. Minir2, r3, ...), with a CLEAN CONTACT! The TH Elite meets this need, but the price is high and it cannot be used in a standard plastic wall box.

What described represents my first approach to SONOFF products: if you are able to solve at least the most serious problems in a very short time, maybe I can consider continuing to work for the satisfaction of my customers using SONOFF products, otherwise I will test other devices brands.

For the problems you are talking about, we already sent you an email, please kindly check. If any problem, please contact us via:

alan yelvington
Significant improvements everywhere

I am MUCH happier with this version! The most important feature is the improved electrical connections that will work for N. American wiring. Whoa. The LCD display gets high marks, and only needs a more reflective back surface to be more legible in dim light. The device itself requires a THS01 to be functional, and the THS01 is a reasonably accurate sensor.

All in all, high marks!

Well designed product

Din rail mount was a good idea. Happy so far with product. Still testing before I implement it to do something useful.
Have named it "laboratory" so I am able to use Alexa speaker by saying. "Alexa! What is the temperature of my laboratory" and it works but you need to use the Alexa APP to set Celsius or Fahrenheit.

Much improved

Improvements over the old TH models
1) temperature connector is solid. In old ones I ended up messing about with them quite a lot.
2) wifi antenna improved. Previous one would occasionally disappear.
3) temperature logging now present. Should have been in past ones.
4) wire connectors much improved

There are only 2 negatives and it still deserves five stars;
1: No Earth/Ground
2. No wire grippers

Given the display is so nice it seems a mistake to put it in a box but that seems like the design. I have stuck it on the outside of a box, drilled holes for 4 wires and then glued them so they cannot be pulled. As it sits in a locked cupboard this seems safe although I would put it fully inside a box were there to be kids etc.

Wayne Morris

My first one stopped working on the wifi after 6 months so ordered new and seems ok now. Connect to home assistant easy but temperature reporting slow. Was able to open up and easily flash with tasmota. Works so well. Controlling my hot water cylinder so great to have a 20 amp relay to handle the load. Great price and seems good quality.

Gabor Somlai
I really needed it

Much better than the previous version. It is worth the extra price and not necessarily because of the LCD, although it is also useful. Temperature and humidity measurement and control are more precise. Thank you.

Does what I wan, but...

After unpacking it I found that the LCD had a crack across it through the temperature display (underneath the covering glass layer).
After eventually installing it and figuring out the eWeLink app I got it to do what I want on my house heating boiler - turning on the pump above 35C and off under 20C.
I also had issues with installing, instructions, and gave feedback regarding the eWeLink app which I sent an email to [****] on Sun, 16 Oct 2022 17:23:07 +1100
which has not been responded to.
I am writing a review because of the recent email message prompting me to.

Thank you so much for your feedback on the THR316D, we have submitted part of that improvement to the product development dept, as for the problem with the hardware, we have contacted you thru email, please check your inbox and we will sort your problem out asap.

SONOFF TH Elite Smart Temperature and Humidity Monitoring Switch