Baby’s Alert Child Minder
This is really shocking last year in the US, 213 deaths were reported as a result of parents forgetting their children in the car. In this case the Baby’s Alert Child Minder is a real life saver. Simply replace your child's safety seat harness clip with the Child 'Minder's Active Shoulder Harness Clip (Active SHC) and place the receiver on your key ring. Fastening the Active SHC activates the receiver, which means that should you walk more than 20 feet from your automobile while your child remains inside in his or her car seat, an alarm will sound to alert you. Once the Active SHC is unfastened, the unit is deactivated.
Baby’s Alert Child Minder is available for pre order for $ 59.95.
Via - Gadgetreview
Ha ha ! Only in the US are people both so self-obsessed *and* stupid to forget their own child in the car.
Hint: if this is going to be a problem to you, it may be better not to breed in the first place.