Feature(may vary by option.)

●Worlds Longest Wireless Range - Powered by LoRa technology, the long-range yet low-power system offers the industry’s longest receiving range in the market (1/4 mile). Our long-range coverage enables its use in areas challenging for most residential Wi-Fi systems, such as basements, outdoor porch/patio areas, sheds, free-standing garages, even remote outbuildings on your property.
●Environment Monitoring – Be informed of the current temperature and humidity of critical equipment and rooms, as well as receive instant notifications of changes based on your personalized criteria. Current temperature and humidity is displayed on the YoLink app, along with historical graphs, so you can monitor current and past temperature and humidity conditions. Receive email and smartphone banner alerts per your individual settings whenever a pre-set value is reached.
●Low-Power Means Longer Battery Life - Because of the low power consumption, device batteries may last 2 years or more (depending on application and device usage/activity), on standard AAA Alkaline batteries (lithium batteries not required)!
●YoLink Hub Required but not included - YoLink Hub is the only central controller for YoLink devices, and it connects YoLink devices to the internet and the cloud. Without YoLink Hub, this sensor does not work with the YoLink app and does not support 3rd-party integration with Alexa and IFTTT. YoLink Hub is not included, please search B07TQLKQLJ for the hub or try our Temp Humidity Sensor 2 Pack Kit with 1 Hub B08JP39RLP
●Team Me Up! – Pair your sensor with a YoLink Siren Alarm for immediate attention-getting alarms. Team your sensor up with one or more YoLink Smart Plugs, to do such things as turn on a dehumidifier upon high-humidity levels, or turn a bathroom exhaust fan on upon high temperature or humidity. Utilize the app’s user-friendly automation functions to create automatic actions per your specific needs. （Products sold separately!）

[With Hub]