The MASTER series of handheld refractometers provides a range of easy to use instruments for a wide variety of applications.

• MASTER-M: Standard model, clear scale, only two drops required
• MASTER-T: Automated temperature compensation from 10 to 30 °C
• MASTER-α: Automated temperature compensation (IP 65 except eyepiece), dust-tight and protected against water jets
• MASTER-P: Designed with a plastic body for resistance to salty and acidic samples

The design has an ergonomic grip and a prism housing that allows for the sample to cover the prism without having to lift the daylight plate.