Never heard of that before. It's like a wifi power strip, but with a temp probe. I read one review of someone wishing there was a way to calibrate the temp probe; said it was two degrees off. If there is really no way to calibrate it, then I don't think it is worth the money.
I use a $20 wifi power strip from Amazon and an InkBird temperature controller for a third of the price of the Teffo. The power strip is nice; I just wish someone made one with 8 outlets; the closest I've seen is 6 outlets, and one one with 8 outlets but only 4 are wifi. You can setup schedules for each outlet, it works remotely, and it can be paired with Alexa or Google Home.