Optical Glycol & Fluid Tester Dasqua

Dasqua battery acid and glycol tester, or refractometer as it is also elegantly called, is an optical instrument that measures the density/freezing point of car coolants (propylene glycol and ethylene glycol) from 0°C to -50°C using the refractive index. Place a few drops on the prism, close the lid, and then read the value. Only a couple of drops are required for a quick and accurate reading. It also indicates the weight of the battery acid and provides a quick reference to the battery's state of charge. Delivered complete with a storage case, screwdriver, and pipette.