> The wifi module might be already certified, but the whole product isn't. That is $5k to $10k minimum for US only. If you're using Pre-certified modules then

> The wifi module might be already certified, but the whole product isn't. That is $5k to $10k minimum for US only. If you're using Pre-certified modules then you can qualify the remainder of your product as unintentional radiator and the FCC certification cost is $1k-2k. > It also plugs into mains, which means it might need UL certification to it won't burn down someone's house. UL certification isn't mandatory, UL isn't a government organization and there's no legal requirement to have your device certified by them. > Even if $20 was your COGS, how much would you have to charge to make a profit? It all depends on how many you sell. If you only intend to sell 1000 or so (likely the case here), you need to charge accordingly. My point is that $150 plus an annual subscription fee is steep for such a simple product. Per unit cost on a very limited run (e.g. 1000 units) doesn't justify a $150 price, especially if you're charging a subscription on top of that.