Timed release padlock Buyer and Importer

Looking to secure or produce a programmable padlock that automatically opens after a predefined period of time (30,45 or 60 minutes). Should be sturdy, metal construction with countdown timer/display and an electronic release. The shackle should be rustproof metal and the base housing should be hard plastic or metal. Digital countdown timer on front. Looking to design, secure prototype and then to purchase initial sample order of approximately 20-50 units. I will then will look to purchase approximately 10,000 as initial order, and anticipate minimum 60-100K units per year. Thank you!y, metal construction with countdown timer/display and an electronic release. The shackle should be rustproof metal and the base housing should be hard plastic or metal. Digital countdown timer on front. Looking to design, secure prototype and then to purchase initial sample order of approximately 20-50 units. I will then will look to purchase approximately 10,000 as initial order, and anticipate minimum 60-100K units per year. Thank you! Show More