DIGITAL PRESSURE GAUGE AP2/B A very important professional tool for assessing the state of wear of cylinders, pistons, rings and valves, the reading is carried out without mechanical parts, through piezoelectric sensors and displayed on an LCD display, making it ideal for small displacement engines SCALE: 0 to 17 bar (0-250 psi) RESOLUTION: 0.1 bar SPARK PLUG CONNECTIONS: Diameter 14 long thread and Diameter 14 short thread Code: R330200 Original Code: EM