Why is pic related so expensive? I don't know much about

The hard part is the signal being just at a very low level and you don't want a bias due to your electrodes.

Have a look at OpenEEG if you want to know what such circuits look like.

PS: Evaluation Kits are always overpriced, if you buy them as a company you usually don't give a shit how many bucks you spent on your tools.

>>1090560
>Why is pic related so expensive
>Also, this seems to be the only kit out on the market
I have absolutely no idea what you are talking about
but it seems like you have already answered your own question.

>>1090560
>(expensive) electrodes
Because the primary market for those electrodes are the health care professionals. They're fine with electrodes costing more than $0.01.
>the only muscle sensor kit out on the market,why?
Because there's no enough interest? Because guys who want to build those things rather design their own shit?

>>1090560
>Why is pic related so expensive?
topkek, at first I thought you are talking about some super advanced medical stuff
but then I googled it and it's a fucking $37.95 hobbyist kit
https://www.adafruit.com/product/2699

>>1090565
Poorfag who lives in a third world country here.
I thought the concept seemed pretty simple,which is why the kit seemed overpriced to me.

>>1090566
>seemed pretty simple
it really is
and the chinks would probably have no problem selling a $3.79 version of it on aliexpress, like they do with most other electronics kits
but the reason they don't is that the market for it will be pretty small (100s-1000s)
and even a simple kit like that will take hundreds of hours of development, testing, etc. time
a first world engineer will cost about $100 an hour so the development costs of such a simple kit can easily go into the 10s of thousand dollars
manufacturing at small scales is also much more expensive for electronics and the retailers (adafruit etc.) will also take their cut
and finally don't forget about >>1090563 why would they lower their prices if they have zero competition

>>1090580
Thanks,that makes sense,I guess.

I'm not sure what you consider expensive as it's a relative term but I have found another kit here https://backyardbrains.com/products/muscleSpikerboxBundle. It's for kids and I would consider it expensive to buy but cheap as it has the schematic posted so i may build one myself possibly with cheap surplus parts or even design my own boards and buy parts in bulk to get price advantages from volume.

>>1091849
$37.95 is too much for OP.