“Do i need wifi or phone line to be sble to recieve remote warnings of the temp”
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The thermostat needs Wifi to utilize any communication. The sensors communicate directly with the thermostat and not through WiFi. If a sensor has a low temperature and the thermostat is offline, you will not receive a notification.
Sorry, there was a problem. Please try again later.You will need WIFI. You must also own a Nest Thermostat (Series 3 or E Series; series 1 & 2 will not work.)
Sorry, there was a problem. Please try again later.Yes you need WiFi as it is paired with the Nest Thermostat.
Sorry, there was a problem. Please try again later.The Nest Temperature Sensor does not work independently, and you would need a Nest Learning Thermostat 3rd gen, or a Nest Thermostat E in order to use this. With that said, the Nest Thermostats do have a safety temperature you can set to receive an alert if it falls above or below the set safety temperatures. Details here: https://nest.com/support/article/How-do-Safety-Temperatures-work
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