Screwed up by remembering the results of the IR / RF Test incorrectly - ends up I need both IR and RF blasters in a single unit. So instead of the Sonoff it sounds like I should look at the Broadlink RM Pro+ RM33 model, since its database is the largest I've seen and should apply to every remote item in the master bedroom (IR and RF).
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Echo Dot 2 (second one in the master bedroom) / Hampton Bay ceiling fan being controlled by a remote ( Hampton Bay LCD Display Thermostatic Remote Control / Model# 60001).
Want to add the Sonoff (EACHEN IR) WiFi-IR Remote IR Control Hub Wi-Fi (2.4Ghz) Enabled Infrared Universal Remote Controller to allow for voice control for the fan and our window air conditioner (sold by Amazon and stated to work with Alexa).
So many are using the BOND unit as the way to make this happen but too expensive for me / will this work in its place? Sure sounds like it should to me but asking those with more experience.