The document describes a service case called 28 TECHNIK ELECTRONIC SERVICE CASE, which includes a comprehensive tool kit for data systems engineering. The case is made from deep-drawn, impact-resistant, grained plastic, with a sturdy aluminium frame. It is dustproof, rainproof, acid-resistant, and scratch-resistant. The case has three removable trays with pockets to hold 82 tools, and one tray has a double pocket for documents. There is a plastic tray at the bottom of the case with adjustable partitions for measuring instruments, soldering iron, and various accessories. The case has 2 locks. The external dimensions are 470 x 360 x 180 mm, and the weight without tools is approximately 4.7 kg, while the weight with tools is approximately 7.6 kg.