Professional 12V Car Electronic Automotive Relay Tester
High-precision universal relay tester designed for quick and accurate diagnostics of 12V automotive relays. Features durable ABS housing with corrosion-resistant metal contacts for long-lasting performance. Compact and portable design fits easily in any toolbox, ideal for mechanics, DIY enthusiasts, and auto repair shops. Quickly checks relay functionality without disassembly, saving time on vehicle maintenance. Compatible with most 12V car models, ensuring versatile use for battery checks, headlights, fuel pumps, and more. Engineered with precision circuitry for reliable testing results every time. Perfect for bulk purchases—stock up for workshops or resale with our unbeatable wholesale pricing. Trusted by professionals worldwide for its efficiency and durability.