The FLUKE AC220 is part of the line of Fluke insulation testers. It is a high accuracy, low cost resistance tester that provides reliable testing with both automatic voltage detection and manual voltage selection. It works with a range of test voltages, making it suitable for testing insulated cables, household and industrial appliances, motors, circuit breakers and transformers. The AC220's features include remote sensing, adjustable test time, recalculation of leakage current, data logger, adjustable pass/fail limits and operator selectable alert sounds.