Yes I have done a patent search and own a patent for this utility application and several of the like, I used alibaba for mechanical timers as you are suggesting but the time increment to size ratio is difficult when trying to reach the cost target and I havnt had much luck. I looked into electrical timers but my expertise is limited in this field and I have found expensive solutions... as it sound like you may have some experience in this I decided to reach out to some MIT electrical engineers in my network to see if they can fabricate this solution using electrical means within the price target, if you are capable of fabricating one I would be interested in paying you for this solution, otherwise do you have a legitimate ISO 90001 manufacturer that can provide this solution? Thank you for your help