Hai All

Have good news.
There's lot of sprays,chemical periode injection,etc that didn't used but they throw it at garbage.
That system fixed repair almost only replaced the coin cell or cable fixed,also simetimes by heating the circuits cause humidity problem.

That's why someone didn't like to built homemade clock/timer kits.
For me counter or clock/timer OK but like this....

http://www.imdb.com/title/tt1637688/

For save...

Anyone have similiar thought?

Thank you
Jeckson S Ben