Kernco Instruments Co Inc's Model 1016 battery/antifreeze tester is a hand-held refractometer designed to indicate specific gravity, freezing point temperature, Kernco Instruments Co Inc's Model 1016 ...
Kernco Instruments Co Inc's Model 11J16 battery/antifreeze tester is a handheld refractometer designed to indicate specific gravity, freezing point temperature, Kernco Instruments Co Inc's Model 11J16 ...