Checks vacuum operated systems on car and light commercials. Gauge 0-76Cm/hg (0-30 In/hg). Barbed brass hose fitting, release valve, `T� Fitting 600mm, tapered hose adaptor, Universal fitting adaptor, cushioned handle grip, robust steel frame, brass cylinder for durability. This set provides many tests including: Automatic transmission, vacuum reservoirs, air conditioning and heating, heater cones, brake systems (including ABS and conventional), Engine management systems, emission control systems, engine tuning, fuel systems, ignition systems, engine maintenance including: Cylinder head, valve stem oil seals, piston ring retainer on diesel engines, waste gases on turbo chargers