Shop On/Off Relay Tester

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Littelfuse Ground-Fault-Relay Tester (SE-100T)
$968.75
Lighting Supply
Littelfuse Ground-Fault-Relay Tester (SE-100T)
$968.75
Lighting Supply
Lisle 56810 Relay Test Jumper Kit
$69.75
Walmart
1
Free shipping
Lisle 56810 Relay Test Jumper Kit
$69.75
Walmart
1
Lisle 69300 Master Relay & Fused Circuit Test Kit
$212.94
Walmart
1K+
Free shipping
Lisle 69300 Master Relay & Fused Circuit Test Kit
$212.94
Walmart
1K+
Littelfuse Se-100T Relay Tester
$870.85
Gordon Electric Supply
Littelfuse Se-100T Relay Tester
$870.85
Gordon Electric Supply
Electronic Specialties 191 Relay Buddy Pro Test Kit
$149.91
$208.99
Walmart
Free shipping
30-day returns
28% off
Electronic Specialties 191 Relay Buddy Pro Test Kit
$149.91
$208.99
Walmart
30-day returns
Electronic Specialties 193 Relay Buddy 12/24 Pro Test Kit
$140.26
Walmart
365
Free shipping
Electronic Specialties 193 Relay Buddy 12/24 Pro Test Kit
$140.26
Walmart
365
Electronic Specialties 192 12/24 Volt Diagnostic Relay Buddy Testing Tool
$96.06
Walmart
Free shipping
Electronic Specialties 192 12/24 Volt Diagnostic Relay Buddy Testing Tool
$96.06
Walmart
Free shipping
ELECTRONIC SPECIALTIES INC 12 V / 24V Diagnostic Relay Buddy Pro Test Kit | 12/24V Diagnostic Relay Buddy Pro Test K | ESI-193
$226.99
FleetPride
60-day returns (most items)
ELECTRONIC SPECIALTIES INC 12 V / 24V Diagnostic Relay Buddy Pro Test Kit | 12/24V Diagnostic Relay Buddy Pro Test K | ESI-193
$226.99
FleetPride
60-day returns
12V Automobile Relay Tester - Electronic Battery & Generator Diagnostic Tool, Universal Check Analyzer
$18.99
$48.57
LightInTheBox
60% off
12V Automobile Relay Tester - Electronic Battery & Generator Diagnostic Tool, Universal Check Analyzer
$18.99
$48.57
LightInTheBox
Electronic Specialties Esi-194 Super Relay Buddy Relay Tester
$131.25
Walmart
Electronic Specialties Esi-194 Super Relay Buddy Relay Tester
$131.25
Walmart
Lisle 60660 Deluxe Relay Test Set
$178.80
Walmart
1K+
Free shipping
Lisle 60660 Deluxe Relay Test Set
$178.80
Walmart
1K+
Universal 12V/24V Automotive Relay Tester Automotive Relay Short Circuit Tester Auto Battery Checker Electronic Relay Tester
$16.99
$26.75
LightInTheBox
36% off
Universal 12V/24V Automotive Relay Tester Automotive Relay Short Circuit Tester Auto Battery Checker Electronic Relay Tester
$16.99
$26.75
LightInTheBox
Auto Car Automotive Relay Tester For 12V 4 / 5 Pin With Battery Clips Car Electronic Relay Tester Battery Checker
$12.99
$21.39
LightInTheBox
39% off
Auto Car Automotive Relay Tester For 12V 4 / 5 Pin With Battery Clips Car Electronic Relay Tester Battery Checker
$12.99
$21.39
LightInTheBox
Performance Tool 3009 Compact Cordless Automotive Relay Tester For 12 Volt 4 And 5 Pin Relays And More
$47.34
$59.99
Amazon.com
41
Free shipping
21% off
Performance Tool 3009 Compact Cordless Automotive Relay Tester For 12 Volt 4 And 5 Pin Relays And More
$47.34
$59.99
Amazon.com
41
ELECTRONIC SPECIALTIES INC Relay Buddy Pro Test Kit | ESI-191
$219.99
FleetPride
ELECTRONIC SPECIALTIES INC Relay Buddy Pro Test Kit | ESI-191
$219.99
FleetPride
Electronic Specialties 190 Relay Buddy - Automotive Relay Tester
$70.01
Walmart
Electronic Specialties 190 Relay Buddy - Automotive Relay Tester
$70.01
Walmart
Deluxe Relay Test Kit
$197.48
Walmart
Free shipping
Deluxe Relay Test Kit
$197.48
Walmart
Free shipping
Automotive Relay Tester Diagnostic Instrument 12V24V Universal Four Foot Five Foot Analysis Tester Automotive Repair Automotive Relay Tester/Automotiv
$18.99
$27.81
LightInTheBox
31% off
Automotive Relay Tester Diagnostic Instrument 12V24V Universal Four Foot Five Foot Analysis Tester Automotive Repair Automotive Relay Tester/Automotiv
$18.99
$27.81
LightInTheBox
Lisle 60610 - Relay Test Jumper Kit 2
$94.14
Walmart
1
Free shipping
Lisle 60610 - Relay Test Jumper Kit 2
$94.14
Walmart
1
ATD Tools Relay Circuit Tester
$209.99
Auto Body Toolmart
30-day returns (most items)
ATD Tools Relay Circuit Tester
$209.99
Auto Body Toolmart
30-day returns
LISLE Master Relay And Fused Circuit Test Kit | Master Relay Circuit Test Kit | LIS-69300
$286.99
FleetPride
LISLE Master Relay And Fused Circuit Test Kit | Master Relay Circuit Test Kit | LIS-69300
$286.99
FleetPride
12V Car Relay Tester: 4/5 - Pin Professional Automotive Tool With Battery Clips
$52.15
eBay
Free shipping
12V Car Relay Tester: 4/5 - Pin Professional Automotive Tool With Battery Clips
$52.15
eBay
Free shipping
12-24V Car Relay Tester Electronic Automotive Relay Detector Diagnostic Tool
$102.60
eBay
Free shipping
12-24V Car Relay Tester Electronic Automotive Relay Detector Diagnostic Tool
$102.60
eBay
Free shipping
Universal 12V Car Relay Tester Electronic Automotive Relay Tester For Auto Battery Checker
$9.12
$17.71
Aliexpress
48% off
Universal 12V Car Relay Tester Electronic Automotive Relay Tester For Auto Battery Checker
$9.12
$17.71
Aliexpress
RT-900 12V Car Battery Relay Tester Car Battery Checker Automotive Electronic Relay Tester Broad Voltage 5-16V Range Ope
$16.99
$69.00
Banggood
75% off
RT-900 12V Car Battery Relay Tester Car Battery Checker Automotive Electronic Relay Tester Broad Voltage 5-16V Range Ope
$16.99
$69.00
Banggood
ISINFLASH 9038A Relay Bypass Switch Kit With Amp Loop, Relay Bypass Switch, Relay Tester, Pack Of 6 Relay Tester Diagnostic Scan Switch Kit 9038A
$37.12
ibspot
ISINFLASH 9038A Relay Bypass Switch Kit With Amp Loop, Relay Bypass Switch, Relay Tester, Pack Of 6 Relay Tester Diagnostic Scan Switch Kit 9038A
$37.12
ibspot
Car Relay Tester 12V Electronic Automotive Relay Tester Easy To Operate Diagnostic Tool Universal For Auto Battery
$13.55
ibspot
30-day returns (most items)
Car Relay Tester 12V Electronic Automotive Relay Tester Easy To Operate Diagnostic Tool Universal For Auto Battery
$13.55
ibspot
30-day returns
12V LED Car Battery & Relay Tester Quick Diagnostic Tool For Automotive Electrical Problems Supports 4/ 5 Pin Relays
$18.99
$89.99
Banggood
78% off
12V LED Car Battery & Relay Tester Quick Diagnostic Tool For Automotive Electrical Problems Supports 4/ 5 Pin Relays
$18.99
$89.99
Banggood
Worgeous 2Pcs Automotive Relay Tester For Garage Use With Pen-Shaped Design
$9.39
Walmart
Worgeous 2Pcs Automotive Relay Tester For Garage Use With Pen-Shaped Design
$9.39
Walmart
Automatic 12/24 Volt Relay Tester - Lightweight With Clear Diagnostic Feedback
$158.97
eBay
Free shipping
Automatic 12/24 Volt Relay Tester - Lightweight With Clear Diagnostic Feedback
$158.97
eBay
Free shipping
Car Relay Tester Voltage Tester Universal 12V Car Battery Checker Automotive Electronic Relay Tester
$10.31
$19.73
Aliexpress
47% off
Car Relay Tester Voltage Tester Universal 12V Car Battery Checker Automotive Electronic Relay Tester
$10.31
$19.73
Aliexpress
Car Relay Tester Voltage Tester Universal 12V Car Battery Checker Automotive Electronic Relay Tester
$6.28
$13.09
Aliexpress
52% off
Car Relay Tester Voltage Tester Universal 12V Car Battery Checker Automotive Electronic Relay Tester
$6.28
$13.09
Aliexpress
LISLE Relay Test Jumper Kit II | Relay Test Jumper Kit2 | LIS-60610
$98.99
FleetPride
LISLE Relay Test Jumper Kit II | Relay Test Jumper Kit2 | LIS-60610
$98.99
FleetPride
2026 Autel Powerscan PS100 Power Circuit Probe Kit, 12V 24V Automotive Electrical Wire Tracer Circuit Relay Tester, Open Breaker Short Find Tool, Read
$89.99
Amazon.com
Free shipping
2026 Autel Powerscan PS100 Power Circuit Probe Kit, 12V 24V Automotive Electrical Wire Tracer Circuit Relay Tester, Open Breaker Short Find Tool, Read
$89.99
Amazon.com
Free shipping
MICTUNING 9038 Relay Bypass Switch, Relay Tester, Relay Bypass Switch Kit, 6-Pack, Black
$49.73
ibspot
30-day returns (most items)
MICTUNING 9038 Relay Bypass Switch, Relay Tester, Relay Bypass Switch Kit, 6-Pack, Black
$49.73
ibspot
30-day returns
Automotive Electronic Relay Tester Car Relay Tester Universal 12V LED Indicator Light Car Battery
$10.78
Aliexpress
Automotive Electronic Relay Tester Car Relay Tester Universal 12V LED Indicator Light Car Battery
$10.78
Aliexpress
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    Shop On/Off Relay Tester

    Sponsored
    About our ads
    Littelfuse Ground-Fault-Relay Tester (SE-100T)
    $968.75
    Lighting Supply
    Littelfuse Ground-Fault-Relay Tester (SE-100T)
    $968.75
    Lighting Supply
    Lisle 56810 Relay Test Jumper Kit
    $69.75
    Walmart
    1
    Free shipping
    Lisle 56810 Relay Test Jumper Kit
    $69.75
    Walmart
    1
    Lisle 69300 Master Relay & Fused Circuit Test Kit
    $212.94
    Walmart
    1K+
    Free shipping
    30-day returns
    Lisle 69300 Master Relay & Fused Circuit Test Kit
    $212.94
    Walmart
    1K+
    Littelfuse Se-100T Relay Tester
    $870.85
    Gordon Electric Supply
    Littelfuse Se-100T Relay Tester
    $870.85
    Gordon Electric Supply
    Electronic Specialties 191 Relay Buddy Pro Test Kit
    $149.91
    $208.99
    Walmart
    Free shipping
    30-day returns
    28% off
    Electronic Specialties 191 Relay Buddy Pro Test Kit
    $149.91
    $208.99
    Walmart
    30-day returns
    Electronic Specialties 192 12/24 Volt Diagnostic Relay Buddy Testing Tool
    $96.06
    Walmart
    3
    Free shipping
    Electronic Specialties 192 12/24 Volt Diagnostic Relay Buddy Testing Tool
    $96.06
    Walmart
    3
    Electronic Specialties 193 Relay Buddy 12/24 Pro Test Kit
    $140.26
    Walmart
    365
    Free shipping
    Electronic Specialties 193 Relay Buddy 12/24 Pro Test Kit
    $140.26
    Walmart
    365
    ELECTRONIC SPECIALTIES INC 12 V / 24V Diagnostic Relay Buddy Pro Test Kit | 12/24V Diagnostic Relay Buddy Pro Test K | ESI-193
    $226.99
    FleetPride
    365
    60-day returns (most items)
    ELECTRONIC SPECIALTIES INC 12 V / 24V Diagnostic Relay Buddy Pro Test Kit | 12/24V Diagnostic Relay Buddy Pro Test K | ESI-193
    $226.99
    FleetPride
    365
    12V Automobile Relay Tester - Electronic Battery & Generator Diagnostic Tool, Universal Check Analyzer
    $18.99
    $48.57
    LightInTheBox
    60% off
    12V Automobile Relay Tester - Electronic Battery & Generator Diagnostic Tool, Universal Check Analyzer
    $18.99
    $48.57
    LightInTheBox
    Lisle 60660 Deluxe Relay Test Set
    $178.80
    Walmart
    1K+
    Free shipping
    Lisle 60660 Deluxe Relay Test Set
    $178.80
    Walmart
    1K+
    Electronic Specialties Esi-194 Super Relay Buddy Relay Tester
    $131.25
    Walmart
    Electronic Specialties Esi-194 Super Relay Buddy Relay Tester
    $131.25
    Walmart
    Universal 12V/24V Automotive Relay Tester Automotive Relay Short Circuit Tester Auto Battery Checker Electronic Relay Tester
    $16.99
    $26.75
    LightInTheBox
    36% off
    Universal 12V/24V Automotive Relay Tester Automotive Relay Short Circuit Tester Auto Battery Checker Electronic Relay Tester
    $16.99
    $26.75
    LightInTheBox
    Auto Car Automotive Relay Tester For 12V 4 / 5 Pin With Battery Clips Car Electronic Relay Tester Battery Checker
    $12.99
    $21.39
    LightInTheBox
    39% off
    Auto Car Automotive Relay Tester For 12V 4 / 5 Pin With Battery Clips Car Electronic Relay Tester Battery Checker
    $12.99
    $21.39
    LightInTheBox
    Performance Tool 3009 Compact Cordless Automotive Relay Tester For 12 Volt 4 And 5 Pin Relays And More
    $47.34
    $59.99
    Amazon.com
    41
    Free shipping
    21% off
    Performance Tool 3009 Compact Cordless Automotive Relay Tester For 12 Volt 4 And 5 Pin Relays And More
    $47.34
    $59.99
    Amazon.com
    41
    ELECTRONIC SPECIALTIES INC Relay Buddy Pro Test Kit | ESI-191
    $219.99
    FleetPride
    ELECTRONIC SPECIALTIES INC Relay Buddy Pro Test Kit | ESI-191
    $219.99
    FleetPride
    Electronic Specialties 190 Relay Buddy - Automotive Relay Tester
    $70.01
    Walmart
    Electronic Specialties 190 Relay Buddy - Automotive Relay Tester
    $70.01
    Walmart
    Deluxe Relay Test Kit
    $197.48
    Walmart
    Free shipping
    Deluxe Relay Test Kit
    $197.48
    Walmart
    Free shipping
    Automotive Relay Tester Diagnostic Instrument 12V24V Universal Four Foot Five Foot Analysis Tester Automotive Repair Automotive Relay Tester/Automotiv
    $18.99
    $27.81
    LightInTheBox
    31% off
    Automotive Relay Tester Diagnostic Instrument 12V24V Universal Four Foot Five Foot Analysis Tester Automotive Repair Automotive Relay Tester/Automotiv
    $18.99
    $27.81
    LightInTheBox