What is pat tester?

A PAT Tester stands for Portable Appliance Tester, which is a device used to test electrical appliances and equipment for safety. The PAT tester helps to ensure that the appliances and equipment are in good working condition, and that they do not pose any electrical hazards. The PAT tester checks the appliances for any faults in the wiring, insulation, or electrical components, and provides a Pass or Fail result based on the testing performed. Typically, PAT testers are used by electricians, maintenance personnel, and engineers to ensure that electrical equipment is safe to use. They are often used in commercial and industrial settings, but can also be used in the home as well.