Interchangeable gauge cover Replaceable gauge cover enables and easy maintenance, enhancing tool life and usability across different testing tasks. Robust construction Crafted from chrome vanadium steel with comprehensive heat treatment to endure demanding conditions while preserving precision in readings. Compact design Small size and thoughtful packaging make it easy to store and transport, fitting neatly in a toolbox or vehicle without taking up excess space. Complete kit The TU1 includes a T shaped connector and conical joint, providing all accessories for effective vacuum testing. Use scenarios Automotive diagnostics: quickly check vacuum lines, intake manifold vacuum, and brake booster systems for leaks on site. Small equipment and DIY projects: verify vacuum integrity in small engines, lawn and garden equipment, and home appliances. Field service and training: portable setup for demonstrations and hands on practice in vacuum testing techniques.