BILIRUBINOMETER  is a handhold instrument used in the dynamic chlinical examination of neonate jaundice, it can be determined instantly and non-invasively that the trascutaneous can concentration of bilirubin correlative with serum bilirubin concentration through the detector is placed on the neonatal skin, This prevents the neonates suffered from blood collection, reduces costs since test results are immediate, and increase efficiency of doctors and nurses.