YoLink Smart Outdoor Temperature and Humidity Sensor, Hygrometer, Thermometer, 1000-Inch Long Range, 2+ Year Battery Life, App for Remote Monitoring and Alerts, Alexa, IFTTT Integration Hub required!

YoLink Smart Outdoor Temperature & Humidity Sensor, Hygrometer, Thermometer, 1000' Long Range, 2 Years Battery Life, Emails, Text/SMS, App Alerts, Alexa, IFTTT Integration. Hub Required!

YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range for Freezer, Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required

YoLink Weatherproof Fluid, Air, Surface Extreme High/Low Temperature Sensor with Probe, 1/4 Mile Long Range, YoLink Hub Required