YoLink Smart Wireless Temperature & Humidity Sensor, 3-Pack, Wide Temp Range for Fridge, Green House, Pet Cage, App Alerts, Emails, Text /SMS alerts- Hub Required

Features

• LORA > WIFI YoLink devices do not use your WiFi, they do not crowd or bog down your WiFi network, but instead they use a unique LoRa-based extreme long-range and low-power wireless protocol unique to most of the smart home industry. Put smart devices where you never could before: outdoors*, several floors away, in fridges, gun safes, and locations well beyond normal WiFi range *Consider one of our weatherproof sensors, designed for outdoor use
• MONITOR & MANAGE your temperature and humidity concerns, whether it's a fridge a barn* or bedroom, a chicken coop or a dog kennel, a plant nursery or your child's nursery - anywhere *Consider one of our weatherproof sensors, designed for outdoor use
• ECONOMICAL SMART FRIDGE Save thousands when you make ANY fridge smart (or smarter) with YoLink smart sensors. Start with temperature sensors, then add door/lid sensors, leak sensors and a Power Fail Alarm.
• IFTTT & Alexa Integration: trigger IFTTT applets based on high or low temperature set points reached (when device alerts). Voice query Alexa for the temperature (only; humidity not supported at this time). Triggering Alexa routines is not supported at this time.
• KNOW NOW You have many options for being notified of device activity Receive a text, receive an email, receive a phone push notification (including Apple phone "Critical Alert" severe weather/Amber alert type notifications that will activate your phone even if in silent mode. Android phones offer similar functionality, depending on phone manufacturer). SMS messages are limited to the total of 5 times each device plus 5. A hub and one sensor provides you with 15 free SMS per month.
• HUB REQUIRED for full functionality, including for the app to work, but your hub is compatible with a growing family of smart products for home and business YoLink devices do not use your WiFi, they do not crowd or bog down your WiFi network, but instead they use a unique LoRa-based extreme long-range and low-power wireless protocol unique to most of the smart home industry. Search for B09FSS95G9 for a SpeakerHub (our audio, talking hub) or B07TQLKQLJ for the original Hub.
• BATTERIES INCLUDED Two AAA batteries, good for 2+ years, are included