Sealey Ethylene Glycol Antifreeze Pocket Ball Tester

The Sealey Ethylene Glycol Antifreeze Pocket Ball Tester is a compact diagnostic tool designed for testing the freeze protection level of ethylene glycol antifreeze mixtures. This pocket-sized tester provides quick and accurate readings, making it ideal for mechanics, vehicle technicians and mobile service engineers who need reliable coolant testing capabilities. The tester uses a simple floating ball system to indicate freeze protection levels. When a coolant sample is drawn into the unit, the number of coloured balls that float provides an immediate visual indication of the antifreeze concentration. An easy-to-read temperature reference table printed directly on the body allows users to quickly interpret results without additional charts or documentation. Weighing just 0.01kg, this portable tester is designed for convenient carrying in toolboxes, pockets or service vehicles. The straightforward design requires no batteries or calibration, making it suitable for workshop use and roadside diagnostics alike.