petrol engine compression tester 20 bar * ensures engine performance through fast and accurate compression measurement * wide compatibility with multiple adapter threads suitable for most petrol engines * robust construction with rubber protection for long life in tough workshop environments * simplifies troubleshooting – quickly identifies wear on piston rings and valves * increases customer satisfaction thanks to reliable diagnosis of engine problems compression tester for auto repair shops & industrial service this professional tool is used in b2b environments such as auto repair shops vehicle technical service centers and industrial workshops to measure and analyze engine compression in petrol engines. A complete adapter kit enables use on everything from passenger cars to smaller work engines. Spare parts and accessories are always available via verktygsgrossen.nu. technical specifications * pressure gauge with rubber protection scale: 0–21 kg/cm² (350 psi) * four adapters for spark plug holes: m10x1 m12x1.25 m14x1.25 m18x1.5 * two universal adapters with rubber cone * rubber hose length: 45 cm * measuring range: 0–20 bar * model: bst-350846 faq how do i install the compression tester?follow the included manual. Choose the correct adapter mount in the spark plug hole and connect the pressure gauge. which spare parts are available?all adapters rubber protection and hose are available as spare parts at verktygsgrossen.nu. how is the product delivered?for professional b2b customers the kit is delivered in a protective storage box with fast distribution. does the tool require electrical connection?no the kit is fully manual and requires no power.