This paper presents the technology to save child's life when by mistake a child is forgotten in the by parents. There are many such cases which were reported and recently the survey by the organization called kids and cars reported that more than 30 children died America because of hypothermia when are forgotten in the car. Form this news it comes to know that severity of the problem and need to design a model for the same. In this system, we have designed a system that will be generating an attentive message through GSM and will be sending to the parents or the numbers that are stored. With this, a buzzer also generates when it detects the child. This condition will take place only when the car is in-off state. Here we using Arduino Uno and temperature sensor also to detect the car's temperature. We are using PIR and sound sensor as well. This design is designed by considering industrial requirement it is very companionable and low cost.