2026 Automotive Circuit Tester Power Probe Relay Tester Car Electrical System

【2‑IN‑1 Multifunctional Automotive Circuit Tester】Combines power probe circuit tester and 4/5 pin relay tester all‑in‑one. Works for DC 3.5‑36V vehicle electrical systems, compatible with 12V cars, motorcycles, 24V trucks, RVs and trailers. Quickly diagnose wiring faults without extra multimeters.

【Digital Voltmeter & Multiple Circuit Test Functions】Built‑in clear digital display for real‑time voltage reading. Supports continuity test, polarity identification, short‑circuit tracing, diode check and buzzer alarm. It can output power to directly activate lamps, motors and other components to verify part performance.

【Built‑in Relay Test Socket for 4‑Pin & 5‑Pin Relays】Insert the automotive relay directly into the onboard socket. One‑click TEST button to check relay coil and contact status, judge good or bad rapidly. No need to disassemble relays from vehicle. Great for relay fault troubleshooting.

【Heavy‑duty Practical Design】Comes with long‑reach test probe, battery alligator clips, ground clip and extended long cable. Durable housing for garage and roadside repair. Hand‑held compact size, easy to carry and operate for DIY and professional mechanics.

【Wide Application】Perfect tool for checking car lights, fuses, wiring harness, switches, relays and other electrical components. Ideal for auto repair shops, garage maintenance, vehicle DIY Aug 13, 2026 at 00:42:33 PDT, seller added the following information:

On Aug 20, 2026 at 23:50:21 PDT, seller added the following information:

On Aug 22, 2026 at 20:11:39 PDT, seller added the following information:

On Sep 7, 2026 at 02:33:49 PDT, seller added the following information:

On Nov 12, 2026 at 00:01:50 PST, seller added the following information: