This high voltage cable tester from Eastern Electronics is a reliable and efficient tool for aviation enthusiasts. With its ability to test 12V and 24V cables, it is perfect for ensuring the safety and functionality of your aviation equipment. The brand, Eastern Electronics Mfg. Corp., has a reputation for producing top-quality aviation parts and accessories, making this tester a great addition to your collection. The manufacturer part number, E5, ensures that you are getting the exact model that you need for your testing needs.