Between 1996 and 2002, more than 175 children died of heatstroke in the passenger compartment of parked vehicles in the U.S. When the outside temperature is 93F, the temperature inside a car can reach 125F in 20 minutes, even with the windows cracked. When left in a hot vehicle, a young child's core body temperature can increase three to five times faster than that of an adult, causing permanent injury or death. Many parents leave their children in the car, thinking that they will return
shortly.

BabyOnBoard is a wireless temperature monitor and key chain alarm system for parents to alert them of potentially dangerous conditions in the car. This is an aftermarket product that can be used with any child car seat and car. This battery-operated system has two main components: (1) a car seat unit and (2) key chain unit. The car seat unit contains a force sensor which is placed on the baby seat. It also contains a sensor which continually monitors the air temperature in the car while there is a child in the seat. If the temperature exceeds the threshold, the unit will send a wireless message to the key chain unit, which will sound an alarm to alert the parent.