YoLink Smart X3 Outdoor Temperature Data Logger with Probe – 1/4 Mile Range, 5+ Year Battery, Apps & Alexa

Smart, Durable Temperature Monitoring for Any Setting

YoLink Smart X3 is a rugged outdoor temperature data logger designed to keep you informed about environmental conditions where temperature matters. Its sealed probe, long-range wireless, and a multi‑year battery create a hassle-free monitoring solution for pools, hot tubs, fish tanks, fridges, and more. This device helps you understand temperature trends without constant upkeep, so you can make timely adjustments as needed.

Long-Lasting, Reliable Monitoring

With five years or more of battery life, the X3 prioritizes reliability. You’ll receive ongoing readings and alerts over many seasons, reducing the need for frequent battery changes. An offline data logger also stores temperature data when the hub is temporarily unavailable, so you can review history later when connectivity returns.

Offline Logging and Hub Requirement

Offline data storage means you don’t lose data during outages. The YoLink Hub is required to operate this sensor; it serves as the bridge to your home or business network, enabling real-time monitoring and notifications.

Smart Notifications Without Subscriptions

Set up one or more notification methods to stay informed about off‑normal conditions. Options include SMS messages, push alerts to your phone, emails, a built‑in siren, or SpeakerHub audible alerts. The YoLink app remains free to use with no mandatory subscription.

Versatile Real‑World Uses

From water temperature in pools, hot tubs, and fish tanks to temperature checks for fridges, freezers, compost piles, and HVAC environments, the X3 adapts to a wide range of scenarios. Paired with YoLink plugs and switches, it blends into broader smart home or small business setups.

• Real‑time readings and alerts help you react quickly to temperature changes
• 1/4 mile wireless range supports monitoring across larger spaces
• Offline data logging preserves history for later analysis
• Long battery life minimizes maintenance and replacements
• Flexible notification options keep you informed across devices

Smart Home Integration

Designed to fit into modern smart ecosystems, the YoLink X3 supports Alexa and IFTTT integration, enabling voice controls and automation routines as part of your temperature monitoring workflow.

How It Works

Note: A YoLink Hub is required for operation. The hub connects the sensor to your network, enabling alerts and data access from your devices.