Designed for professional auto technicians and enthusiasts, this back probe set enables precise electrical diagnostics without compromising wire integrity. Key benefits: - Protects wire insulation: flexible back probes insert into round connector pins with minimal risk of insulation damage - Reliable performance: built for automotive temperature ranges and steady contact during testing - Broad compatibility: works with common round connectors and standard test leads and meters - Durable construction: designed for frequent use in garages, weatherproof harnesses, and field service - Easy to use: compact tips reach tight spaces for quick, accurate probing Use scenarios: - In tight engine bays, probe sensor wires to verify voltage and signal integrity without removing harnesses - At weatherproof connectors during module replacement, wiring repairs, or harness diagnostics - In shop or roadside repairs, confirm continuity and pin functionality across automotive circuits This back probe set delivers precision, protection, and compatibility to streamline automotive diagnostics.