New Automotive Electronic Relay Car Relay Tester -4/5Pin 12V Car Diagnostic Tool
Tester: 4.33in/110mm (L) × 2.24in/57mm (W) × 1.06in/27mm (H). Insert Relay : Place the relay into the corresponding 4-pin or 5-pin slot (switch the toggle as needed). Test : Press the “TEST” button.