How It Works

1
Install your TH switch
Wire a Sonoff TH Elite or TH Origin into the line that controls your fan, heater, or appliance. Pair it in eWeLink.
2
Plug in the probe
Connect the THS01's RJ9 plug into the TH switch's sensor port. Readings appear in the app instantly.
3
Place the probe where you need it
Lay the 1.5 m cable to the spot you want monitored - corner of the room, baby's bedside, greenhouse shelf.
4
Set rules + alerts
In eWeLink: "Turn on fan when humidity > 65%", "Alert me when temp drops below 18°C in baby's room".

Is This Right for Me?

Temperature range: -40°C to +85°C
Humidity range: 0 - 100% RH
Connector: RJ9 - fits Sonoff TH Elite / TH Origin only
Cable length: 50 cm (can be extended with the Sonoff RL560 cable)
Power: Powered by the TH switch (no battery)
Install: Plug-and-play

Product Details

Sonoff Temperature & Humidity Sensor (THS01)

This sensor measures both temperature and humidity in the air and sends the readings to your phone through the eWeLink app. It plugs into a Sonoff TH Elite or Sonoff TH Origin, and you can set up automations based on the readings – like turning on a dehumidifier when humidity rises.

Great for monitoring rooms, greenhouses, storage areas, and baby rooms.

Key Features:

  • Dual Monitoring: Tracks both temperature (-40°C to +85°C) and humidity (0–100% RH).
  • Phone Alerts: Get notified when readings go beyond your set limits.
  • Automatic Control: Pair with TH Elite/Origin to turn devices on/off based on conditions.
  • Easy Connection: Plugs directly into the TH Elite or TH Origin using an RJ9 cable.

Pro Tip: Place this in a room with a dehumidifier connected to the TH Elite – set it to turn the dehumidifier on when humidity goes above 65% and off when it drops below 50%. Your room stays comfortable automatically.

What You Get

Temp + humidity together
Reads both - -40°C to +85°C, 0-100% humidity. Cover any room, greenhouse, or storage area.
Plug-and-play
Just plug the RJ9 connector into your Sonoff TH Elite or TH Origin. No app pairing, no battery to worry about.
Phone alerts
Set thresholds in eWeLink - get a notification the moment temperature or humidity crosses your limit.
Triggers your TH switch
Automate a water heater, fan, or dehumidifier - TH Elite turns it on/off based on probe readings.
Wired = reliable
Powered by the TH switch - no batteries to die. Reads continuously.

A Closer Look

Sonoff Temperature Humidity Sensor

Temperature measuring range from -40℃ to +85℃ and humidity measuring range from 0 to 100%RH.

Sonoff Temperature Humidity Sensor
Sonoff THS01 Temperature & Humidity Probe (TH Elite / Origin)

Works With

Sonoff TH Elite (16A)
Works
Sonoff TH Origin (16A)
Works
Works with eWeLink, Alexa, Google through the TH switch
Works

Control with the eWeLink app

eWeLink app icon
eWeLink
Set up your Sonoff THS01 Temperature & Humidity Probe (TH Elite / Origin) in minutes - voice control, scenes, automations, away mode.
App Store Google Play
View app

What's in the Box

1× Sonoff THS01 probe with RJ9 cable
User manual

Delivery & Pickup

Standard Delivery
All Lebanon governorates, within 2–4 working days.
4 $ · Free over 50 $
Express Delivery
Faster shipping, available across all Lebanon. Your exact delivery date depends on your town - you will see it at checkout.
6 $ flat
Pickup - Dekwaneh
Collect from the Wakilni warehouse in Dekwaneh. We send the exact address on WhatsApp when your order is ready. Weekdays 10am–5pm, Sat 10am–1pm.
3 $ · Free over 30 $

Warranty & Support

6-month Local Warranty
Covers defects in materials & workmanship. Handled here in Lebanon.
WhatsApp Support - Always On
Can't set it up? Message us. We reply within minutes, not days.
14-day Exchange - Unopened Items
The item must be unopened and in its original packaging. Exchange it for a product of equal or higher value - we do not give cash refunds. Opened items are covered by the warranty if there is a factory defect.
Free Setup Call
If you get stuck, we'll walk you through the setup on a free WhatsApp call.

Frequently Asked Questions

Does it work on its own, or do I need a TH switch? ›
It needs a Sonoff TH Elite or TH Origin to plug into. The probe is the sensor; the TH switch is the brain that reads it and controls appliances. If you want a wireless sensor instead, get the SNZB-02P + Bridge Pro.
Can I monitor temperature and humidity from my phone? ›
Yes - once plugged into the TH switch, readings show up in the eWeLink app, with history charts and threshold alerts.
How accurate is it? ›
Good for general home/garden use - accurate within a few percent for humidity and around 1°C for temperature. For precision lab-style work, use the SNZB-02P (Swiss-made, ±0.2°C).
Can I extend the cable further from the TH switch? ›
Yes - the Sonoff Sensor Extension Cable adds more length. Useful when you want the TH switch hidden in a cabinet and the probe out in the room.
Will it work outdoors? ›
Not directly - this probe isn't waterproof. For outdoor or water-tank use, swap to the WTS01 waterproof probe (same RJ9 plug).
Can it directly control a fan? ›
Yes - set a rule in eWeLink: "If humidity > 65% → TH Elite turns on". The TH switch is the relay that turns the fan on; the probe tells it when.

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