YoLink 2-Pack X3 Version Temperature Humidity Data Logger, Longest Wireless Range, 5+ Years Battery, Emails/Text/App Alerts, Alexa, Best Freezer, Greenhouse Monitor. Hub Included

Monitor & Manage Temperature & Humidity Remotely: the usage of the free, no subscription-required and user-friendly YoLink app, you’re going to know the temperature and humidity at a glance, whether you are in the other room or at the other side of the world.
Be Informed of Atypical Conditions: receive smartphone push notifications, email, SMS notifications when a condition you have set up to now is met. Additional notifications and central station monitoring service are optional upgrades.
Commercial Grade Accuracy and Environmental Range: designed with home and business applications in mind, precision components are utilized, to give you the accuracy you demand. Temperature acccuracy of ±0.54℉ and humidity accuracy of ±3% RH and extended operating range of -22° to 158° F.
IFTTT & Alexa Integration: trigger IFTTT applets in keeping with high or low temperature set points reached (when device alerts). Voice query Alexa for the temperature (only; humidity not supported presently). Triggering Alexa routines isn’t supported presently.
Long-lasting Performance: X3 Temperature Humidity Sensor features an exceptional 5-year battery life, guaranteeing uninterrupted and dependable monitoring of temperature and humidity levels over an extended period without the need for frequent battery changes.
Offline Data Logging: The X3 Thermometer Hygrometer comes equipped with an innovative offline data logger, allowing you to capture and store temperature and humidity information even when not connected to a hub. Retrieve and review the recorded data conveniently on every occasion your device is back online.