We were surprised that this was such a big problem and that there would actually be a market for the Baby Alert. Considering what it is intended to prevent however, the concept is definitely a worthwhile one. Apparently, children accidentally being left in a hot vehicle is the second leading cause of automobile related child deaths behind being backed over by a car. With this system, the safety harness clip in the car is replaced with the child minder smart clip.
A corresponding alarm unit is then attached to your keychain so if you move further than 10 feet away from the smart clip an audible alarm is triggered. No more absent minded, distracted parents and hopefully a decrease in unfortunate child deaths.
Available here for $64.95