This design specification document outlines a device that uses an adjustable arm band with multiple LEDs and detectors to monitor blood oxygen levels. It will use two pulse oximeters simultaneously, one to get a baseline reading and the other to identify crises. Preliminary testing proved this dual method viable. The device also aims to recreate vaso-occlusion conditions by slowing blood flow to extremities, and will assign pain levels from 1 to 10 based on numerical readings from the device.