The ATD Tools 1106 Professional Antifreeze and Coolant Tester is a reliable tool for testing the quality of ethylene glycol-based antifreeze and coolant. With a universal fit for automotive use, this tester is lightweight at 0.35 pounds and easy to handle. The package contains 1 unit in standard packaging, making it a convenient tool for HVAC and refrigeration professionals looking to ensure optimal performance of cooling systems. The compact dimensions of 14.61x4.33x2.17 inches make it easy to transport and store, making it a valuable addition to any toolbox.