Automotive Relay Tester 12V, Quick Pass/Fail Circuit Checker Tool

Check common 12V automotive relays quickly with this simple tester that connects to your car battery and shows the result with an LED.

• Works with a 12V car battery (11V to 15V) via alligator clips
• Tests relay contact closing and opening
• Green LED for pass, red LED for fail
• Compact handheld tool for garage diagnostics

Ships with tracking. Typical delivery 7–15 business days.