[billiallards]

Looks like <$30 to buy a single unit on DigiKey with a prevailing price ~$40, but you'd probably need a reflow oven to solder the unit. $60 for an assembled board at retail.

Bulk retail is closer to $20, so OP may not have been referring to negotiated wholesale volume pricing.

https://octopart.com/search?q=scd40&currency=USD&specs=0

[MichaelZuo]

$60 for an assembled unit at a retail store when the sensor alone is $20-$25 in bulk?