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$49.99$39.99
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X3 Smart Temperature & Humidity Sensor
X3 Smart Temperature & Humidity Sensor
X3 Smart Temperature & Humidity Sensor
X3 Smart Temperature & Humidity Sensor
X3 Smart Temperature & Humidity Sensor
Ability for X3 Sensor to control devices and equipment based on temp and humidity set points.
X3 Smart Temperature & Humidity Sensor Components broken down.
Protect your frozen and refrigerated foods with economical smart sensors from YoLink.
X3 Smart Temperature & Humidity Sensor ability to pair with a SpeakerHub.
X3 Smart Temperature & Humidity Sensor ability to prevent the loss of refrigerated items.
Table comparing YoLink temperature and humidity sensors with specifications on a black background

The X3 Temperature and Humidity Sensor includes the features of the YS8003 Temperature & Humidity Sensor, with added battery life (up to 3 years), and advanced sensor data streaming and recording. On-board memory allows for storing over 5000 events in offline mode.


Please note: a YoLink Hub or SpeakerHub is required for full functionality! 

$49.99$39.99

Customer Reviews

Based on 10 reviews
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T
Tony W
Works great

I placed this unit inside my refrigerator it works great. Reliable signal and easy to set up temperature and humidity alarm points.

X
Xuechen Zhu
Good sensitivity

The sensor records the temperature and humidity change in my house and it is sensitive. I can see the cycles of the temperature changes by the triggering of the heater, indicating that it senses the environmental change well.

D
David Naunton
Its ON Already!

When I opened the box of the X3 Smart Temperature & Humidity Sensor I was surprised to see that it was already on. I even checked to see if the display had a protector on it with temperature markings. But no, it was telling me the temp in the box. I think this bodes well for battery life. Transmission distance seems good also as I have it in a detached garage on the other side of my property near the alley. So all in all I think this is a good start.

M
Michael McKeon
Works as Intended

Like all YoLink products, quality and ease of use are evident. I wish they could pair it with an outside sensor.

T
Thomas Glassen
Easy to set up and works very well

Installed three X3 Smart Temperature & Humidity Sensors in two refrigerators and a freezer, one inside the house and two in the garage. Set up couldn't have been easier; open the Yolink app, click the 'add device' button, scan the QR code on the back of the sensor and it's set up, ready to edit the name and room as you see fit and set up alerts for hi/low temperature and humidity. The data reporting in the app works very well, allowing a variety of options to see the data over a selected date/time range, etc.
And, most importantly of course, Yolink's wireless technology works through the metal walls of refrigerators and freezers as claimed.

 X3 Temperature & Humidity Sensor

  • Smart thermometer and hygrometer monitors, displays, records, and reports to the YoLink app the current temperature and humidity level
  • In addition to the YS8003 Temperature & Humidity Sensor specifications, the new X3 Temperature & Humidity Sensor incorporates advanced sensor refresh and storage, including over 5000 events stored in offline mode, with added battery life (up to 3 years), and advanced sensor data streaming and recording.
  • Know the current temperature level at the sensor’s location. Check remotely using the YoLink app, anytime and from anywhere
  • LCD display shows current temperature (Celsius or Fahrenheit) and current humidity (%)
  • Portable; may be placed anywhere in your home or wall-mounted
  • High/low temperature alerts
  • High/low humidity alerts
  • Compact design allows for placing the sensor where others may not fit
  • Easy to install and portable; move to other locations as needed
  • Extremely easy and fast installation using the YoLink app with Scan & Play
  • Wireless operation; no 120V outlet or wiring required
  • Self-calibration available via the YoLink app

X3 smart temperature and humidity sensor from YoLink.

Temperature and Humidity Analytics

Historical temperature and humidity graphs displayed in hourly, daily, weekly and monthly figures with exportable data 

Phone view of the YoLink app containing graphs showing the temperature and humidity of a room along with the graph.
X3 smart temperature and humidity sensor ready for business with real-time sensor data viewing, improved data recording, and onboard storage for over 64,000 events.
Climate control using advanced LoRa-based wireless technology with YoLink that has long battery life, long range, and even works in freezer unlike WiFi or Bluetooth sensors.

Monitor Temperature and Humidity Anywhere

YoLink’s industry-leading long range communication allows for placing the sensor 

in your out-buildings, separate garage building, barns, greenhouse, etc.

Phone that shows a garage freezer high temperature alert.
Monitor Temperatures

Place one in each room your wish to keep an eye on the temperature and humidity. Monitor the temperature of rooms or buildings without temperature control, for example, receive a low-temp alert before water pipes freeze.

Mildrew growing on a wall.
Preventive maintenance

Place the sensor in a basement or other area subject to mold and mildew growth due to high humidity levels. Identify problem areas before expensive repairs are required

Shower head in bathroom.
Smart Control

Use the sensor and app automation features to automatically turn on the exhaust fan in your bathroom during hot showers and baths or turn the humidifier or dehumidifier on or off based on sensor levels.

Fridge containing perishable fruits and vegetables.
Protect Perishables
Monitor your humidor, wine cellar, or any other temperature- and/or humidity-sensitive item or area like inside a refrigerator or freezer to prevent the loss of expensive foods due to equipment failure or power loss

Smart Temperature and Humidity Sensor

  • Economical & Smart 

    No fees or subscriptions with free YoLink app, lower cost of ownership than other technologies; low-power operation means batteries may last over 2 years, compared to 1 or less from other brands


  • Batteries Included 

    Uses standard alkaline batteries (2 AAA batteries), included. Wireless operation; no 120V outlet or wiring required

  • Easy DIY Installation

    Extremely easy and fast installation using the YoLink app with Scan & Play


  • Additional Analytics 

    Historical temperature and humidity graphs displayed in hourly, daily, weekly and monthly figures

X3 smart temperature and humidity sensor from YoLink in usage with Alexa to tell the freezer temperature.

Smart Alerts

Set customizable thresholds for temperature and humidity through the YoLink App. Receive instant notifications if conditions exceed your limits, allowing for timely actions to protect your environment, whether it's for child safety, food storage, or plant health.


Alexa Integration: Voice query Alexa for the temperature (only; humidity not supported at this time). 


IFTTT Integration: Use the IFTTT service (www.ifttt.com) to create custom automation with YoLink and third-party devices, tailored to your particular needs and your IoT devices. Trigger IFTTT applets based on high or low temperature or humidity set points reached (when the device alerts; when it detects a high or low temperature or humidity level, per your pre-set parameters). Please note: IFTTT is a subscription-based service, with only three free automations.



Compatible with Others

Hubs

First time with YoLink? Make sure to include a hub to begin your smart YoLink Home system, or take a look at our Starter Kits

$23.59
$24.95
$98.99
Phone holding YoLink app with text saying 'Manage, Be alert to off-normal temperature or humidity conditions'.
Dog in RV with humidity and temperature sensor.
Smart humidity and temperature sensor for office comfort.
Smart humidity and temperature sensor allowing humidity management.
Phone ability on YoLink App to access data and historical records of your temperature and humidity sensor.
Smart humidity and temperature sensor for exhaust fan control.
Smart humidity and temperature sensor for smart attic fan.

Additional Applications

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Hassle-Free Refunds

Return within 30 days for a full refund

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2-Year Warranty

Have peace of mind with YoLink warranty 

Tools icon.
Easy DIY Installation

Simple and clear do-it-yourself installation

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Lifelong Customer Support 

Get dedicated support for your product 

Technical Specifications 

Semtech® LoRa® RF Module YL09 microcontroller with 32-Bit RISC processor

Color: White

Display: Monochromatic LCD

Data Displayed: Temperature, humidity, low-battery indicator

Dimensions (L x W x D): 2.70 x 2.70 x 0.94 inches (68.5 x 68.5 x 24 mm)

Multi-color status LED (rear)

SET button (rear)

Power: 2 AA batteries (3V DC)


Environmental: 

Operating Temperature Range: -22°F - 140°F (-30°C - 50°C)

Operating Humidity Range: ≤95% (non-condensing)


Intended for indoor use

Requirements

  • YoLink Hub or SpeakerHub (audio, talking hub) with an internet connection (wired Ethernet or 2.4GHz Wi-Fi). Refer to the hub user guide for additional information
  • Smartphone or tablet running iOS 9 or higher, Android 4.4 or higher
  • Tools Required: None (Unless wall-mounting, optional)
  • Installation Difficulty Level: Super Easy

User Guide

X3 Temperature and Humidity Sensor Installation Manual Cover.

Frequently Asked Questions

White sensor with the temperature and humidity showing in the display along with YoLink logo on the bottom of the sensor.
Is there an Alexa command that will read out the temperature?
 Yes, you can query Alexa. If your sensor name is ATTIC TEMP HUMIDITY, as it is in my own home, you can say "Alexa, what is the temperature of the attic temp humidity sensor?" And Alexa will return with "The attic temp humidity sensor temperature is 111 degrees."
How often does the sensor check the temp and humidity for automation? Is the sensor only checked after a certain number of minutes?
The sensor updates the app each hour, minimum, but also updates if any of the following occur:

At least 0.9 F degree change over a period longer than 1 minute
At least 3.6 F degree change within 1 minute
At least 5% humidity changes over a period longer than 1 minute
The device reaches a pre-set high or low alert level (set by the user)
Or the SET button on the device has been pressed.
The YoLink hub is required for the smart features - is there an alternate way to just connect wifi and monitor from the  without the hub?
No, YoLink hub is required. YoLink smart devices use a special wireless technology based on LoRa, which can offer extreme long range (1000 feet compared to 100 for WiFi, outdoors, line-of-sight) and superior obstruction penetration including concrete and metal, but they do not use your WiFi. They need to wirelessly connect to one of our hubs.
X3 smart temperature and humidity sensor technical specifications.
X3 smart temperature and humidity sensor dimensions.
Text saying 'LoRa is short for Long-Range but it is also Low-Power. Thanks to LoRa technology your sensors can go over 2 years between battery changes. This means less time and money spent replacing batteries.
Grid images of popular applications for the X3 smart temperature and humidity sensor.

What Our Customers Think!

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