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Relay Checker(57)
Uses item details. Price when purchased online
Clearance 2026 Upgrade Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker (1pcs) From $11.99
From$1199
2026 Upgrade Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker (1pcs)
Electronic Specialties ESI-194 Super Relay Buddy Relay Tester $134.34
$13434
current price $134.34Electronic Specialties ESI-194 Super Relay Buddy Relay Tester
15 out of 5 Stars. 1 reviews
Electronic Specialties 191 Relay Buddy Pro Test Kit $129.74 Was $208.99
Now$12974
current price Now $129.74, Was $208.99$208.99
Electronic Specialties 191 Relay Buddy Pro Test Kit
15 out of 5 Stars. 1 reviews
Electronic Specialties 192 12/24 Volt Diagnostic Relay Buddy Testing Tool $78.59
$7859
current price $78.59Electronic Specialties 192 12/24 Volt Diagnostic Relay Buddy Testing Tool
34.7 out of 5 Stars. 3 reviews
2026 Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Fuse Blade Checker High Precision, 2-in-1 Portable Current Waterproof Diagnostic Tool with LED Display Lighting for Vehicle (1pcs) From $18.88
From$1888
2026 Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Fuse Blade Checker High Precision, 2-in-1 Portable Current Waterproof Diagnostic Tool with LED Display Lighting for Vehicle (1pcs)
11 out of 5 Stars. 1 reviews
Automotive Circuit Fault Probe TesterHigh-Precision Tester 20A 48V Car Relay Blade Checker Built-in Front Light With Blue Backlit LCD Screen
Automotive Circuit Fault Probe TesterHigh-Precision Tester 20A 48V Car Relay Blade Checker Built-in Front Light With Blue Backlit LCD Screen
Automotive Circuit Fault Probe Tester, Automotive Open & Short Finder, Car Relay Fuse Blade Checker, 20A 48V Wire Tracer with LED Display and Lighting, Portable High-Precision Current Tester(1PC) From $12.99
From$1299
Automotive Circuit Fault Probe Tester, Automotive Open & Short Finder, Car Relay Fuse Blade Checker, 20A 48V Wire Tracer with LED Display and Lighting, Portable High-Precision Current Tester(1PC)
Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Fuse Blade Checker with LED Display & Front,Short & Open Finder $19.64
$1964
current price $19.64Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Fuse Blade Checker with LED Display & Front,Short & Open Finder
Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Fuse Blade Checker with Blue Backlit LCD Screen & Front Light, Portable High-Precision Current Tester From $27.99
From$2799
Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Fuse Blade Checker with Blue Backlit LCD Screen & Front Light, Portable High-Precision Current Tester
Automotive Circuit Fault Probe Tester, 20A 48V-High-Precision Current Tester, 2-in-1 Wire Tracer Short Finder, Car Relay Fuse Checker with LED Display & Front Light $23.99
$2399
current price $23.99Automotive Circuit Fault Probe Tester, 20A 48V-High-Precision Current Tester, 2-in-1 Wire Tracer Short Finder, Car Relay Fuse Checker with LED Display & Front Light
Clearance Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen(1PC) From $12.99
From$1299
Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen(1PC)
Automotive Circuit Fault Probe Tester | 20A 48V High-Precision Car Relay Fuse Blade Checker with LED Display From $24.88
From$2488
Automotive Circuit Fault Probe Tester | 20A 48V High-Precision Car Relay Fuse Blade Checker with LED Display
Clearance Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen (2pcs) Was $40.99
Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen (2pcs)
14 out of 5 Stars. 1 reviews
Wdhugt Automotive Circuit Fault Probe Tester High Precision 48V Car Relay Fuse Blade Checker With Blue Backlit Lcd Screen
Wdhugt Automotive Circuit Fault Probe Tester High Precision 48V Car Relay Fuse Blade Checker With Blue Backlit Lcd Screen
Yannianjz Automotive Circuit Fault Probe Tester, High-Precision 20A 48V Car Relay Tester and Blade Fuse Checker, Built-in Front Light with Blue Backlit LCD Screen for Vehicle Electrical System $15.99
$1599
current price $15.99Yannianjz Automotive Circuit Fault Probe Tester, High-Precision 20A 48V Car Relay Tester and Blade Fuse Checker, Built-in Front Light with Blue Backlit LCD Screen for Vehicle Electrical System
GJX Automotive Circuit Fault Probe Tester,High-Precision Current Tester,20A 48V Car Relay Fuse Blade Checker,Built-in Front Light with Blue Backlit LCD Screen (1pcs) $17.97
$1797
current price $17.97GJX Automotive Circuit Fault Probe Tester,High-Precision Current Tester,20A 48V Car Relay Fuse Blade Checker,Built-in Front Light with Blue Backlit LCD Screen (1pcs)
Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen From $25.77
From$2577
Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen
ABPETE Automotive Circuit Fault Probe Tester with LED Display & Front Lighting,Portable High-Precision Car Circuit Probe Tester,Water Proof Car Relay Fuse Blade Checker for Various Vehicles (1PCS) From $29.88
From$2988
ABPETE Automotive Circuit Fault Probe Tester with LED Display & Front Lighting,Portable High-Precision Car Circuit Probe Tester,Water Proof Car Relay Fuse Blade Checker for Various Vehicles (1PCS)
Automotive Circuit Fault Probe Tester | 2026 New Portable High-Precision 20A 48V Car Relay Fuse Blade Checker From $25.88
From$2588
Automotive Circuit Fault Probe Tester | 2026 New Portable High-Precision 20A 48V Car Relay Fuse Blade Checker
Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker for Various Vehicles (1pc)
Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker for Various Vehicles (1pc)
PLPPYFS Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen, for Various Vehicles $19.99
$1999
current price $19.99PLPPYFS Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen, for Various Vehicles
Cnbj-611 Automotive Current Tester, 20a 48v Fuse & Circuit Parasitic Draw Tester Automotive, High-Precision 0.01a-19.99a Short Finder, 2-in-1 Relay & Fuse Checker with LED Display for Car $25.28
$2528
current price $25.28Cnbj-611 Automotive Current Tester, 20a 48v Fuse & Circuit Parasitic Draw Tester Automotive, High-Precision 0.01a-19.99a Short Finder, 2-in-1 Relay & Fuse Checker with LED Display for Car
GJX Automotive Circuit Fault Probe Tester,Portable High-Precision Current Tester,20A 48V Car Relay Fuse Blade Checker Test Light with LED Display and Lighting 2-in-1 Car Short Finder(1PC) $18.47
$1847
current price $18.47GJX Automotive Circuit Fault Probe Tester,Portable High-Precision Current Tester,20A 48V Car Relay Fuse Blade Checker Test Light with LED Display and Lighting 2-in-1 Car Short Finder(1PC)
Clearance OUNONA Car Relay Tester Multifunctional Circuit Electric Fence Wire Free DC $9.39 Was $10.47
Now$939
current price Now $9.39, Was $10.47$10.47
OUNONA Car Relay Tester Multifunctional Circuit Electric Fence Wire Free DC
Automotive Circuit Fault Probe Tester, 2026 Upgrade High-Precision 20A 48v Car Circuit Probe Tester with LED Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker From $24.99
From$2499
Automotive Circuit Fault Probe Tester, 2026 Upgrade High-Precision 20A 48v Car Circuit Probe Tester with LED Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker
Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker for Various Vehicles (2PCS) $40.98
$4098
current price $40.98Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker for Various Vehicles (2PCS)
Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker for Various Vehicles (1PC) $23.98
$2398
current price $23.98Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker for Various Vehicles (1PC)
Dnogom 48V 20A Automotive Circuit Fault Probe Tester, High-Precision Car Relay Checker with LCD Screen & Front Light for Car Repair Was $20.08
Dnogom 48V 20A Automotive Circuit Fault Probe Tester, High-Precision Car Relay Checker with LCD Screen & Front Light for Car Repair
Clearance Hovmgk High-Precision Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Blade Checker, Built-In Front Light and Blue LCD Display for Accurate Electrical Diagnostics and Circuit Fault Detection Was $17.36
Hovmgk High-Precision Automotive Circuit Fault Probe Tester, 20A 48V Car Relay Blade Checker, Built-In Front Light and Blue LCD Display for Accurate Electrical Diagnostics and Circuit Fault Detection
SEWOART Back to School Automotive Ignition Line Tester Test Pen Assorted Color 2Pcs For Car Owners $11.17
$1117
current price $11.17SEWOART Back to School Automotive Ignition Line Tester Test Pen Assorted Color 2Pcs For Car Owners
Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen From $24.69
From$2469
Automotive Circuit Fault Probe Tester, High-Precision Current Tester, 20A 48V Car Relay Fuse Blade Checker, Built-in Front Light with Blue Backlit LCD Screen
Best seller EverStart 6/12 Volt Circuit Tester, AA Battery Size, Product Net Content: 1 Unit, Suitable for Automotive Testing $4.96
$496
current price $4.96EverStart 6/12 Volt Circuit Tester, AA Battery Size, Product Net Content: 1 Unit, Suitable for Automotive Testing
2534.4 out of 5 Stars. 253 reviews
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GJX Ignition Coil Spark Tester with Led Display,Non-Contact Electronic Fault Detector Pen for Car Engine Systems $27.88
$2788
current price $27.88GJX Ignition Coil Spark Tester with Led Display,Non-Contact Electronic Fault Detector Pen for Car Engine Systems
FUEENIRVA 1Set Ignition Coil Tester for Automotive Diagnosis with Leakage Detection in 11.8x7.9x1.6in $17.00
$1700
current price $17.00FUEENIRVA 1Set Ignition Coil Tester for Automotive Diagnosis with Leakage Detection in 11.8x7.9x1.6in
HONMEET Fuse Checker Tool, High Precision Automotive and Marine Fuse Tester, Orange Plastic Design $13.73
$1373
current price $13.73HONMEET Fuse Checker Tool, High Precision Automotive and Marine Fuse Tester, Orange Plastic Design
Automotive Circuit Fault Probe Tester, Cnbj-611 Automotive Fuse Current Teste,Short Finder with LED Display and Lighting 2-in-1 Wire Tracer Electrical for Car (Blue) Was $21.51
Automotive Circuit Fault Probe Tester, Cnbj-611 Automotive Fuse Current Teste,Short Finder with LED Display and Lighting 2-in-1 Wire Tracer Electrical for Car (Blue)
karymi Automotive Circuit Fault Probe TesterHigh-Precision Tester 20A 48V Car Relay Blade Checker Built-in Front Light with Blue Backlit LCD Screen Gifts for Women Bedroom Decor up to 70% off $11.99
$1199
current price $11.99karymi Automotive Circuit Fault Probe TesterHigh-Precision Tester 20A 48V Car Relay Blade Checker Built-in Front Light with Blue Backlit LCD Screen Gifts for Women Bedroom Decor up to 70% off
Clearance Sinyiin LED Display Voltage Meter for Car Electrical Systems Resistance Checker $8.78 Was $9.86
Now$878
current price Now $8.78, Was $9.86$9.86
Sinyiin LED Display Voltage Meter for Car Electrical Systems Resistance Checker
LED Display Voltages Meter for Car Electrical Systems Resistance Checker Retractable 140cm Spring Cable $9.56 Was $10.68
Now$956
current price Now $9.56, Was $10.68$10.68
LED Display Voltages Meter for Car Electrical Systems Resistance Checker Retractable 140cm Spring Cable
LED Display Voltages Meter for Car Electrical Systems Resistance Checker Retractable 140cm Spring Cable $10.74
$1074
current price $10.74LED Display Voltages Meter for Car Electrical Systems Resistance Checker Retractable 140cm Spring Cable
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