Check the listing for details. Cylinder Leak Down Tester Car Gasoline Engine Dual Gauge Leakdown Detector Tool. Condition: New, Made in China. Listed at 34.98 USD. Features: The comprehensive cylinder leak down tester kit introduces six new components, expanding your diagnostic capabilities for a superior repair experience. Building upon a foundational set (1 double gauge manifold, 1 rubber hose, and 2 metal adapters included), this 3-in-1 cylinder gauge diagnostic tool kit (Engine Pressure Tester) incorporates 2 universal push-on connectors, 2 threaded adapters, 1 M14 extension rod, and 1 extension hose—essential additions for both DIY enthusiasts and professional mechanics. The dual gauge design facilitates simultaneous testing of pressure and leak rate within the cylinder under examination. Covering a range of 0-100 psi / 0-7 bar and 0-100% (Accuracy: ±0.5%), the easy-to-read 3-inch gauges streamline the reading process, saving valuable time. T.