To confirm with Jake if my idea of having a type of hard drive installed in the car seat possible? This would require some type of electrical charge. This type of pathway may increase costs when applying device in the car seat.
The simple solution is manufacturer applying the ShockWatch style indicator in the chair. This is a cheaper and easier solution. Easier for manufacture and cheaper for production and installation. Process: Customer buys seat – Over 3 month period customer returns to Mothercare – Mothercare checks condition of car seat – Mothercare fills out a customer log book for record. The log book comes with the car seat which must be passed on to other parents when brought second hand.
I will choose from one of these paths by tomorrow in order for me to go further with my project.