About This

• VERY VERSATILE: many applications, including pool/hot tub & fish tank water, wood boiler, fridge and deep freezer, livestock water trough, milk, beer, wine, water, steam and pipe temperature monitoring. Additional uses include composting, HVAC/heating/cooling/ventilation management (YoLink smart plugs and switches purchased separately).
• KNOW NOW: be informed immediately of off-normal conditions when you easily set up one or more optional notification methods, including SMS*, phone push notifications, emails, siren and/or SpeakerHub audible notifications for your home or business. *Each YoLink app account receives 5 free SMS per month per device plus five. Additional 200 or 500 SMS are available for 2 and 5 dollars per month, respectively. There are no required subscriptions and the app is always free.
• Long-lasting Performance: X3 Temperature Sensor features an exceptional 5-year battery life, guaranteeing uninterrupted and dependable monitoring of temperature levels over an extended period without the need for frequent battery changes.
• Offline Data Logging: The X3 Thermometer comes equipped with an innovative offline data logger, allowing you to capture and store temperature information even when not connected to a hub. Retrieve and review the recorded data conveniently whenever your device is back online.
• What’s Included: This package includes 1 YoLink Hub and 1 Sensor—2 items total. The “Number of Items: 2 Pack” refers to the two individual products in the package, not two sensors.
• OUTDOOR INSTALLATION REQUIREMENTS — Designed for outdoor use, but not waterproof. Install the device in a protected location away from direct rain, standing water, condensation, and excessive moisture. Covered areas or enclosures may reduce exposure but may still collect humidity or condensation. Prolonged exposure to moisture can damage electronic components and affect device performance.