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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

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



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.

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.

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

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.

Protect Perishables
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

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.







Additional Applications
Hassle-Free Refunds
Return within 30 days for a full refund
2-Year Warranty
Have peace of mind with YoLink warranty
Easy DIY Installation
Simple and clear do-it-yourself installation
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
Frequently Asked Questions




