TONKBEEY Professional Tester Test Kit Cylinder Compression Gas Engine Set Automotive Tool Gauge Diagnostic Tools for Car & Truck

Features: The tester is made of durable copper and steel materials which can be used for a long time and is not easily deformed after repeated use. Checking compression on petrol engine quickly and accurately. Easy pressure release button on side of tester. Manual pressure release for maintaining peak readings. Professional-grade threaded adapters for leak-proof seals. Extended hoses for hard-to-reach applications. Large easy-to-read 6.9m/2.71inch diameter gauge. Package Includes: 1x Engine Compression Tester Gauge Specifications: Material:Metal+Plastic Diameter: Approx.6.9m/2.71inch note: 1.Please allow 1-2cm errors due to manual measurement make sure that you do not mind before you order. 2.Due to the difference between different monitors the picture may not reflect the actual color of the item. Thanks for your understandings.