YoLink X3 Outdoor Sensor: Temp & Humidity, 5-Year Battery, Data Logger

Overview

Meet the YoLink X3 Outdoor Temperature and Humidity Sensor — a purpose-built monitor that works with the YoLink Hub to deliver precise readings and dependable alerts. No ongoing subscription is required to view data in real time through the free YoLink app, whether you’re at home or miles away. The X3 is designed for both residential and commercial settings, offering a robust blend of reliability, range, and ease of use.

What makes the X3 stand out

The X3 tracks both temperature and humidity with commercial-grade accuracy and a wide operating range, so you can keep sensitive environments within safe bounds. Expect readings within approximately ±0.54°F for temperature and ±3% RH for humidity, across a broad span from -22°F to 158°F. This versatility makes it suitable for patios, greenhouses, wine cellars, attics, and storage sheds where climate consistency matters.

With the YoLink ecosystem, you stay informed without a subscription. The app presents readings at a glance, and you can configure alerts that trigger when conditions cross your thresholds. Push notifications, email, and SMS options are available, with optional upgrades for centralized monitoring if you’re managing multiple devices or properties.

Automation, alerts, and smart-home integration

The X3 pairs well with IFTTT and Alexa, enabling practical automation and quick checks. Create IFTTT applets that respond to high or low temperature events, and ask Alexa for the current temperature during routine tasks. Note that humidity queries via Alexa are not supported yet, but the broader smart-home integrations continue to expand your options.

Battery life is a key benefit: the X3 is designed for long-term, maintenance-free operation with a 5-year lifespan under typical use. In the event your hub is temporarily offline, the X3 also includes offline data logging, so you won’t lose historical readings when connectivity returns.

Practical use cases

• Home environments: monitor a wine cellar, greenhouse, or attic to protect valuables and comfort.
• Small business settings: guard storage rooms, server closets, and outdoor kiosks where precise climate data supports operations.

What you get at a glance

• Remote visibility of temperature and humidity through the YoLink app.
• Reliable accuracy for meaningful environmental data across indoor and outdoor spaces.
• Flexible notifications (push, email, SMS) to suit your routine.
• Long battery life and offline data logging to preserve readings during hub downtime.
• IFTTT and Alexa compatibility to enable automation and voice checks.

Remember, a YoLink Hub is required for operation and is not included with the X3. This device is designed to complement a broader smart-environment setup focused on awareness and responsive action, rather than guarantees.