The GJ-DQ-04 is a universal 12V automotive relay tester that checks 4-pin and 5-pin relays, using red and green LED indicators to show normal or abnormal status.
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The GJ-DQ-04 Relay Tester is a universal electronic tool for quickly checking automotive relays on a 12V system. It supports both 4-pin and 5-pin relays. A red LED indicates normal status while a green LED indicates an abnormal relay, making it easy to diagnose faulty relays. The tester is for 12V batteries only, with a recommended testing voltage of 11V to 15V.
Universal. For 12V automotive systems using standard 4-pin and 5-pin relays.
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