Kernco Instruments Co Inc's Model 1016 battery/antifreeze tester is a hand-held refractometer designed to indicate specific gravity, freezing point temperature, and battery charging levels.
The test takes only a few seconds. To do it, place a drop or two of the sample on the prism surface, hold it up to a light, and read propylene glycol (-60° to 32° F), ethylene glycol (-84° to 32° F), or battery fluid (1.100 to 1.400 specific gravity), depending upon sample selected. The battery fluid scale also shows condition, such as “recharge,” “fair,” and “good.” This tester has a blue filter system that gives sharp, clear readings.
The Model 1016 weighs 7 ounces and is 6" long. It comes with an adjustable knob for easy calibration and has a rubber eyepiece guard that shields out extraneous light. For additional information, contact Kernco, 420 Kenazo Ave, El Paso TX 79928-7339.