Automotive Relay Tester

12V Automotive Relay Tester — 4-Pin & 5-Pin — Electrical Diagnostic Tool. $25. Works with any 12V vehicle battery to test both 4-pin and 5-pin relays. Automatic detection of pin position and cycle time with simple LED indicators (Green = Good, Red = Abnormal). A compact, handheld tool perfect for diagnosing electrical issues in cars and trucks without expensive shop visits. Equipped with insulated battery clamps for safety and a long-life seamless docking connector. Includes a simple toggle switch for 4-pin/5-pin modes and a one-touch test button. Condition: Open Box; appears new and ready for use. Pickup in Downtown Toronto.