Hand Held Refractometer    MASTER-20Pα

MASTER-20Pα is for low concentration measurements such as juices, cutting oil, etc. It has the automatic Temperature Compensation (ATC) model with water resistant feature (IP65).The MASTER-20α is made of metal, and the MASTER-20Pα is plastic. The specifications are exactly the same. For salty and acidic samples, choose the plastic body, MASTER-20Pα.