The JF107 is an essential diagnostic tool for every mechanic and car owner. Designed to provide a rapid "Go/No-Go" evaluation, this tester accurately assesses the health and functionality of the most common automotive relays. By simulating real-world operation, it ensures that your vehicle's electrical components are operating safely and efficiently, saving you hours of troubleshooting time.
Dual Voltage Compatibility: Versatile design supports both 12V and 24V systems, making it suitable for cars, SUVs, and heavy-duty vehicles.
Smart Diagnostic Logic: The tester checks pin configuration and monitors the exact timing of contact closure and opening for comprehensive analysis.
Instant Visual Feedback: Equipped with clear LED indicators; a GREEN LED confirms the relay has passed all tests, while a RED LED indicates a functional failure or inconsistency.
Contact Consistency Test: Unlike basic testers, this unit monitors the consistency of the relay throughout the entire test session to detect intermittent faults.
Battery Powered Efficiency: Conveniently draws power directly from the vehicle's battery (12V-24V), eliminating the need for external power sources or internal batteries.
Model: JF107
Application: Automotive Relay Testing (4-Pin & 5-Pin standard)
Voltage Range: 12V -- 24V DC
Indicators: LED (Green for Pass / Red for Fail)
Test Criteria: Pin Configuration, Contact Timing, and Operational Consistency
Material: Heavy-Duty Industrial Grade Housing
Connect the tester's clips to the vehicle battery (Red to Positive, Black to Negative).
Plug the automotive relay into the corresponding socket on the tester.
Press the test button.
Observe the LED result: Green for a healthy relay, Red for a faulty unit.
1 x JF107 Professional Relay Tester