Refractometers
The reading scale is usually calibrated to determine the concentration of a particular substance. There is a wide variety of refractometers
Model: 12.99.080
PROPYLENE/ETHYLENE GLYCOL 75240 ROBINAIR REFRACTOMETER
The Robinair 75240 Hand Refractometer is a portable, precision optical instrument used for measuring the freeze point of engine coolant and the operation state of battery charging liquid.
It is used on transportation vehicles,..
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