This document describes a baby incubator system that uses an Arduino microcontroller to monitor temperature, humidity, and light conditions inside the incubator. Sensors measure these conditions and the Arduino controls fans, heaters and lights to maintain stable conditions for preterm babies. If conditions go outside safe ranges, the system sends an alert SMS using a GSM module to notify parents and medical staff. The goal is to create an environment similar to the womb to help preterm infants survive and allow remote monitoring of incubator conditions for caregivers.