DONT TRY THIS WITH WiFi Our unique LoRabased sensors are different from WiFi, Zigbee, ZWave and most other wireless smart sensors in that they are extreme longrange up to 14 mile openair, lowpower years between battery changes, and work outdoors*, on other floors, and even in a metal box like a fridge or mailbox MONITOR MANAGE your temperature and humidity concerns, whether its a fridge, a barn or bedroom, a chicken coop or a dog kennel, a plant nursery or your childs 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 doorlid 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. PLUG, PLUG PLAY Take advantage of direct ethernet connection and be online almost instantly when you plug your Hub into your router or network switch. Or, use hot spot mode to connect to your WiFi network in moments. Add devices in seconds using our Scan Play QR code scanner in the app Set your notification preferences, test your new sensors, then enjoy years of troublefree operation 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 weatherAmber 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 two sensors provides you with 20 free SMS per month.