4iE Smart WiFi Thermostat

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Does the 4iE work over 3G?

Both your 4iE and the device you are using to control it (iPad, smartphone, laptop etc.) need to be connected to the internet. They do not need to be connected to the same WiFi network. For example, your 4iE can be connected to your home internet network and your smartphone can be connected to a different 3G network whilst you’re out and you’ll be able to control your 4iE remotely.