I just set up a trio with an iPhone and everything Max Rockbin said matches my experience. Other than that, it works as advertised. The router is on the ground floor, all three devices in the converted basement. two in the utility room (water heater, humidifier for the whole house) and a third in the downstairs bathroom. At home. I'm always afraid that we might have a leak in the basement and not know about it for a few days. One more thing: If you have a 5GHz WiFi network, you need to turn on the 2.4GHz band as that is the only WiFi band that Flo works on. Bottom line, it does what I need and I order the second three-pack for the ground floor (laundry room, dishwashing/dishwasher area, and 32 cu.ft. refrigerator).
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