Refractometers, hand-held, precision, MASTER-TA
For simple, manual measurement of concentrations and refractive indices of liquids. Hand-held, precision refractometers with focussing eyepiece, soft rubber eyecups (to reduce straylight ingress, also spectacle lenses do not slip off and are not scratched), case and conversion tables. Hand-held refractometers cannot be fitted with a thermostatic controller and so measurements have to be temperature compensated.

Models with extra code M: Basic model
Models with extra code T: with automatic temperature compensation (ATC)
Models with extra code a: with automatic temperature compensation (ATC) and protection class IP65

Specifications
Type MASTER-TA, for wine 
Measuring range: 0,0 - 25,0 % T.A., 0,0 - 40,0 % Brix (Automatic Temperature Compensation)
Accuracy: ±0.3 % T.A. ± 0.2 % Brix (10 to 30 °C)
Minimum scale value 0.2 % T.A. 0.5 % Brix
International Protection Class: IP65 (except eye piece)
Dimensions & Weight: 3.2×3.4×16.8cm, 130g
Dust-tight and Protected against water jets