Flexible Back Probes - Lisle 65150

Product Information

The diagnostic test probe is a precision tool used with multimeters, oscilloscopes, or scan tools to measure electrical signals and test circuits in automotive systems. It allows technicians to access connectors, terminals, and wiring safely without causing damage, ensuring accurate diagnostics of sensors, modules, and harnesses. Typically featuring insulated handles, sharp metal tips, and durable wiring, diagnostic probes are designed for reliability, safety, and repeated use in demanding service environments.

• Intermittent or inaccurate readings – caused by worn or damaged probe tips.
• Frayed or broken probe wiring – leads to poor conductivity or unsafe operation.
• Loose or poor connector fitment – reduces reliability during electrical testing.

About Lisle

Founded in 1903, C.A. Lisle started the company with the first product being horse-powered water well drilling machines. On the off season to the well drilling business, they manufactured washing machines, cream separators, and push-type reel lawn mowers. In the mid-20s, Lisle Corporation made its first automotive product, a master ignition vibrator for Ford Model T vehicles. The first Lisle tool, a valve refacer, fast became a repair shop must since valves were reground every 20,000 miles at that time. In the 1930's they also manufactured magnetic oil drain plugs that were used in WWII for military equipment resulting in the Army/Navy E Award for manufacturing excellence in supporting the war effort. In the 1950's after the war, the automotive aftermarket boomed and demand for specialty automotive tools increased. It was then that the Lisle Corporation made the decision to grow the company by introducing new tools that could be made in the company's own factory, thereby controlling quality, delivery and costs. Today the company's tool line consists of more than 400 products of which most are produced at the original location, now expanded, in Clarinda, Iowa.