Pico Diesel Glow Plug Adaptor Kit This tool set is used in conjunction with the Pressure transducer and PICO automotive PC-Based Oscilloscope. This set contains 15 different glow plug adaptors and the adaptor that connects them to standard universal compression hose. This covers the majority of commonly used glow plug styles in modern diesel engines. Diesel vehicles have become more advanced and testing of compression and engine efficiency is an everyday problem for technicians. Because of this issue, Pico Technology has worked to put together this fifteen-piece adaptor kit. As part of the kit included is a vehicle application list, covering models and engine codes for 30 vehicles.