What if my router does not support 2.4GHz?

This article includes detailed information on the Flo Smart Water Monitor and Shutoff, also known as the Flo by Moen Water Shutoff. 

Routers that support 5GHz will often operate under a dual-band mode and also support 2.4GHz devices. Refer to router instructions or contact the manufacturer for assistance. Use of a dual-band wireless network repeater/range extender that can connect to the 5GHz network will also allow 2.4GHz devices to be connected to the extended network. Please contact the Flo Smart Water Monitor and Shutoff support at 1-844-MEETFLO (1-844-633-8356) for more information..