Sinewave revolution
This and the igaro d2 seems like the best bets. Quite spendy though :/
Get what you paid for.
You asked what to get, I answered.
I bought one 6 years ago, still works.
I just bought a sinewave. I like that Igaro are iterating rapidly but that has led to at least one recall and they're also significantly more expensive.
@nogk started
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Sinewave revolution