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All AgricultureAll IndustrialAgricultural Structures & HardwareCalibrationData RecordersElectrical TestingElectronic & Bench TestingHumidity MonitorsInspection & Analysis ToolsLivestock SuppliesMicroscopesMotion, Speed, Force MeasurementNetwork and Cable TestersPatient CarePH and ThermometersPressure & VacuumScalesSurface TestingTemperature & HumidityWater Quality & InstrumentationWeather StationsWeight, Sound, and Light MeasurementWind Speed Gauges
Connection Tester(466)
Uses item details. Price when purchased online
Best seller NOYAFA NF-826 Underground Wire Tracer & Cable Locator with Voltage Detection $115.51 Was $132.95
Sponsored
Now$11551
current price Now $115.51, Was $132.95$132.95
NOYAFA NF-826 Underground Wire Tracer & Cable Locator with Voltage Detection
214.8 out of 5 Stars. 21 reviews
ANCEL PB500, 65V Red Digital Circuit Probe Kit Power Scan Automotive Circuit Tester From $49.99
Sponsored
From$4999
ANCEL PB500, 65V Red Digital Circuit Probe Kit Power Scan Automotive Circuit Tester
264.5 out of 5 Stars. 26 reviews
TRENDnet TC-NT2 Network Cable Tester for TP and Coax Cables with 2 RJ-45-to-BNC Adapters $39.99 Was $54.25
Sponsored
Now$3999
current price Now $39.99, Was $54.25$54.25
TRENDnet TC-NT2 Network Cable Tester for TP and Coax Cables with 2 RJ-45-to-BNC Adapters
34.7 out of 5 Stars. 3 reviews
Clearance STORGENER Car Circuit Tester, Wire Piercing Circuit Tester, 6-12-24V, Automotive Probe Tool Electric Trailer Wiring Diagnosis From $10.99 Was $29.99
Sponsored
From$1099
$29.99
STORGENER Car Circuit Tester, Wire Piercing Circuit Tester, 6-12-24V, Automotive Probe Tool Electric Trailer Wiring Diagnosis
424.7 out of 5 Stars. 42 reviews
Best seller EverStart 6-24V Automotive Circuit Tester, Bidirectional Polarity Test Light with Red/Green LED Indicator $5.44
$544
current price $5.44EverStart 6-24V Automotive Circuit Tester, Bidirectional Polarity Test Light with Red/Green LED Indicator
1954.3 out of 5 Stars. 195 reviews
Treedix USB Cable Tester with 2.4" Color Screen for eMarker Reading, PD 3.0/3.1 Detection, Resistor and Continuity Check, Compatible with Lightning, Type-C, Micro-B 2.0/3.0, and Mini-B Cables $43.99
$4399
current price $43.99Treedix USB Cable Tester with 2.4" Color Screen for eMarker Reading, PD 3.0/3.1 Detection, Resistor and Continuity Check, Compatible with Lightning, Type-C, Micro-B 2.0/3.0, and Mini-B Cables
14 out of 5 Stars. 1 reviews
Best seller Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker $11.89 Was $13.99
Now$1189
current price Now $11.89, Was $13.99$13.99
Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker
204.9 out of 5 Stars. 20 reviews
Rupoun Professional Network Cable Tester for LAN RJ45 and RJ11, Accurate Computer Network Hand Tool with Line Tracker, High-Speed Connection Diagnostic Tool, White, 4.33 inches / 11 cm $10.60
$1060
current price $10.60Rupoun Professional Network Cable Tester for LAN RJ45 and RJ11, Accurate Computer Network Hand Tool with Line Tracker, High-Speed Connection Diagnostic Tool, White, 4.33 inches / 11 cm
M Buder WZ-468 RJ45 and RJ11 Network Cable Tester Ethernet LAN Network Test Tool for Telephone Wire Circuit State Includes Detachable Section, 3.8 inches / 9.7 cm Size $11.18
$1118
current price $11.18M Buder WZ-468 RJ45 and RJ11 Network Cable Tester Ethernet LAN Network Test Tool for Telephone Wire Circuit State Includes Detachable Section, 3.8 inches / 9.7 cm Size
M Buder ET624 Multifunctional Wire Tracer CAT5 CAT6 Network Cable Tester Line Finder Digital Circuit Analyzer POE Cable Fault Locator and Continuity Tester with Built-in Multimeter and Battery $82.56
$8256
current price $82.56M Buder ET624 Multifunctional Wire Tracer CAT5 CAT6 Network Cable Tester Line Finder Digital Circuit Analyzer POE Cable Fault Locator and Continuity Tester with Built-in Multimeter and Battery
Mrcartool B530 12V 24V Automotive Circuit Tester Test Light Electrical System Diagnostic Toolwith DC/AC Voltage, Resistance & Diode Test, 10m Cable From $59.99
Sponsored
From$5999
Mrcartool B530 12V 24V Automotive Circuit Tester Test Light Electrical System Diagnostic Toolwith DC/AC Voltage, Resistance & Diode Test, 10m Cable
35 out of 5 Stars. 3 reviews
Visual Fault Locator 30KM Fiber Optic Cable Tester VFL Kit with Single Mode 9/125um FC Male to LC Female Adapter, Aluminum Alloy 650nm Red Light Pen $14.59
Sponsored
$1459
current price $14.59Visual Fault Locator 30KM Fiber Optic Cable Tester VFL Kit with Single Mode 9/125um FC Male to LC Female Adapter, Aluminum Alloy 650nm Red Light Pen
Autel PowerScan PS100 Automotive Circuit Tester, Power Circuit Probe Tool, 12-24V Electrical Short Open Breaker Circuit Finder, AC/DC Current Resistance, Duty Cycle, & 20FT Extension Cord $89.99
$8999
current price $89.99Autel PowerScan PS100 Automotive Circuit Tester, Power Circuit Probe Tool, 12-24V Electrical Short Open Breaker Circuit Finder, AC/DC Current Resistance, Duty Cycle, & 20FT Extension Cord
Wire Tester Connector Continuity Tester, Integrated Precision Electronic Cable Tester ,Heavy Duty Build
Wire Tester Connector Continuity Tester, Integrated Precision Electronic Cable Tester ,Heavy Duty Build
THE CIMPLE CO - Universal Network Cable Tester Tool, BNC, RJ45, RJ11 (3-in-1) Multi-Tester White $24.97
$2497
current price $24.97THE CIMPLE CO - Universal Network Cable Tester Tool, BNC, RJ45, RJ11 (3-in-1) Multi-Tester White
Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester with Extended Spring Wire & Probe for Car/RV/Vehicles $10.99
$1099
current price $10.99Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester with Extended Spring Wire & Probe for Car/RV/Vehicles
144.6 out of 5 Stars. 14 reviews
Tone Generator Kit, Wire Tracer Circuit Tester, 200EP High Accuracy Wire Tester, Multi-Tone Cable Test with Inductive Amplifier $25.99
$2599
current price $25.99Tone Generator Kit, Wire Tracer Circuit Tester, 200EP High Accuracy Wire Tester, Multi-Tone Cable Test with Inductive Amplifier
54.2 out of 5 Stars. 5 reviews
Rupoun 4-in-1 Coaxial Cable Tester Network Tool for RJ11, RJ45, USB, BNC - Portable MultiTester with LED Display, Open/Short Circuit Test, Up to 300ft / 91.44m Cable Length, Black (6.69 in / 17 cm) $36.18
$3618
current price $36.18Rupoun 4-in-1 Coaxial Cable Tester Network Tool for RJ11, RJ45, USB, BNC - Portable MultiTester with LED Display, Open/Short Circuit Test, Up to 300ft / 91.44m Cable Length, Black (6.69 in / 17 cm)
Suodoka 4-in-1 Multifunctional Network Cable Tester for RJ45 BNC RJ11 USB Coaxial Wire Testers, Open Short Circuit Test, 8.27 inches / 21 cm Length, Essential Professional Tool for Engineers $23.88
$2388
current price $23.88Suodoka 4-in-1 Multifunctional Network Cable Tester for RJ45 BNC RJ11 USB Coaxial Wire Testers, Open Short Circuit Test, 8.27 inches / 21 cm Length, Essential Professional Tool for Engineers
M Buder P60 Automotive Circuit Tester Car Electrical System Short Tester 6-30V DC LCD Display Flashlight Component Activation Continuity Testing Grounding Detection Trace Locate Short Circuits $32.22
$3222
current price $32.22M Buder P60 Automotive Circuit Tester Car Electrical System Short Tester 6-30V DC LCD Display Flashlight Component Activation Continuity Testing Grounding Detection Trace Locate Short Circuits
Automotive Circuit Tester DC 6-42V Short & Open Finder Car Wire Tracker Tool $19.79 Was $21.99
Sponsored
Now$1979
current price Now $19.79, Was $21.99$21.99
Automotive Circuit Tester DC 6-42V Short & Open Finder Car Wire Tracker Tool
Spliseal Starter Wiring Sealing Kit - Economical All-in-One Kit with 80W Glue Gun,1 Mould $116.95
Sponsored
$11695
current price $116.95Spliseal Starter Wiring Sealing Kit - Economical All-in-One Kit with 80W Glue Gun,1 Mould
M Buder HDMI High Definition Digital Cable Tester and Portable RJ45 Cable Tester Tracker for Accurate Continuity, Open, Shorted, and Crossed Wire Pair Checking (10.5 mm / 0.4 inches) $20.24
$2024
current price $20.24M Buder HDMI High Definition Digital Cable Tester and Portable RJ45 Cable Tester Tracker for Accurate Continuity, Open, Shorted, and Crossed Wire Pair Checking (10.5 mm / 0.4 inches)
M Buder Professional Network Cable Tester and RJ45/RJ11 Line Finder, Heavy Duty Handheld Telephone Wire Tracker and Continuity Tester, Multi-Function Diagnostic Cable Locator (6.69 inches / 17.0 cm) $12.08
$1208
current price $12.08M Buder Professional Network Cable Tester and RJ45/RJ11 Line Finder, Heavy Duty Handheld Telephone Wire Tracker and Continuity Tester, Multi-Function Diagnostic Cable Locator (6.69 inches / 17.0 cm)
Adjustable Ignition System Coil Tester Coil Connection Plug Ignition Circuit Test $9.99
$999
current price $9.99Adjustable Ignition System Coil Tester Coil Connection Plug Ignition Circuit Test
K Tool XDCHT504 Cordless Circuit Tester LED Polarity Audible Alert $37.99 $37.99/count
$3799
current price $37.99$37.99/count
K Tool XDCHT504 Cordless Circuit Tester LED Polarity Audible Alert
33.7 out of 5 Stars. 3 reviews
M Buder ET606 Network Cable Tester Kit with POE Polarity Check, NCV Voltage Detection, Switch Port Flashing, Handheld Wire Tracker (8.50 inches / 21.6 cm) $38.29
$3829
current price $38.29M Buder ET606 Network Cable Tester Kit with POE Polarity Check, NCV Voltage Detection, Switch Port Flashing, Handheld Wire Tracker (8.50 inches / 21.6 cm)
GUYUTING Portable Trailer Tester For 7/13 Pin Connectors, Black Circuit Analyzer For Car Caravan Trailer Truck Fault Checking $25.99
$2599
current price $25.99GUYUTING Portable Trailer Tester For 7/13 Pin Connectors, Black Circuit Analyzer For Car Caravan Trailer Truck Fault Checking
Electrical Wire Tracer Circuit Tester w/Tone Generator & Probe Kit, Signal Locator Tester, Test Circuit Continuity, Network Telephone Line, Automotive Circuit Identify Tools w/Clips & RJ11 Plug
Electrical Wire Tracer Circuit Tester w/Tone Generator & Probe Kit, Signal Locator Tester, Test Circuit Continuity, Network Telephone Line, Automotive Circuit Identify Tools w/Clips & RJ11 Plug
24Pin Charging Cable Tester USB C Connection Diagnostic LED Circuit Testing Tool $7.24 Was $8.09
Now$724
current price Now $7.24, Was $8.09$8.09
24Pin Charging Cable Tester USB C Connection Diagnostic LED Circuit Testing Tool
Best seller Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker $11.89 Was $13.99
Sponsored
Now$1189
current price Now $11.89, Was $13.99$13.99
Automotive Test Light 5-90V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Voltage Tester, Electric Test Pen with Extended Spring Wire & Probe for Car RV Fuse Checker
204.9 out of 5 Stars. 20 reviews
ANCEL PB600 Power Circuit Probe Tool with Battery/Relay/Injector Test, 8-35V Automotive Electrical Circuit Tester $189.99 Was $359.99
Sponsored
Now$18999
current price Now $189.99, Was $359.99$359.99
ANCEL PB600 Power Circuit Probe Tool with Battery/Relay/Injector Test, 8-35V Automotive Electrical Circuit Tester
14 out of 5 Stars. 1 reviews
YAHHU Fiber Optical Power Meter SC FC ST Connector 800-1700nm -70~+6db Network Cable Tester Kit Diagnostic Tool for Fast Accurate Connections (8.27 inches / 21 cm) $26.74
$2674
current price $26.74YAHHU Fiber Optical Power Meter SC FC ST Connector 800-1700nm -70~+6db Network Cable Tester Kit Diagnostic Tool for Fast Accurate Connections (8.27 inches / 21 cm)
Camco Power Grip Dogbone Circuit Analyzer for RV Camping- 30/15 Amp - 12" (55461) From $37.97
2 options
Available in additional 2 optionsFrom$3797
Camco Power Grip Dogbone Circuit Analyzer for RV Camping- 30/15 Amp - 12" (55461)
294.9 out of 5 Stars. 29 reviews
OEMTools 6-24V Circuit Tester $13.99
$1399
current price $13.99OEMTools 6-24V Circuit Tester
15 out of 5 Stars. 1 reviews
Nilight 30 AMP RV Circuit Tester 125V/3750W RV Circuit Analyzer Plug with LED Indicator Light 30 amp Nema TT-30P ETL Listed Surge Protector Circuit Tester Plug for RV Camper Trailer $17.99
$1799
current price $17.99Nilight 30 AMP RV Circuit Tester 125V/3750W RV Circuit Analyzer Plug with LED Indicator Light 30 amp Nema TT-30P ETL Listed Surge Protector Circuit Tester Plug for RV Camper Trailer
15 out of 5 Stars. 1 reviews
Lisle Corporation, Heavy Duty 3-30V Digital Tester $52.38
$5238
current price $52.38Lisle Corporation, Heavy Duty 3-30V Digital Tester
Best seller NOYAFA NF-826 Underground Wire Tracer & Cable Locator with Voltage Detection $115.51 Was $132.95
Now$11551
current price Now $115.51, Was $132.95$132.95
NOYAFA NF-826 Underground Wire Tracer & Cable Locator with Voltage Detection
214.8 out of 5 Stars. 21 reviews
Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights $89.99
$8999
current price $89.99Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights
34.3 out of 5 Stars. 3 reviews
Power Probe III w/Case & Accessories - (PP319FTC) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, AC/DC Current Resistance, Circuit Tester] (Black - Limited Edition) $233.71 $233.71/lb
![Power Probe III w/Case & Accessories - (PP319FTC) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, AC/DC Current Resistance, Circuit Tester] (Black - Limited Edition)](https://i5.walmartimages.com/seo/Circuit-Testers-14-24V-Black-Test-Light-and-Voltmeter_83a337e3-1955-411e-86e1-352344d816d8_1.fc0cd919ced1ba956ea373a3e04f3d04.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$23371
current price $233.71$233.71/lb
Power Probe III w/Case & Accessories - (PP319FTC) [Car Automotive Diagnostic Test Tool, Digital Volt Meter, AC/DC Current Resistance, Circuit Tester] (Black - Limited Edition)
74.9 out of 5 Stars. 7 reviews
M Buder 10KM Pen Type Visual Fault Locator Non Contact Connection VFL Fiber Optic Red Light Pen Tester 400mAh Battery Kit (7.09 inches / 18 cm) $26.57
$2657
current price $26.57M Buder 10KM Pen Type Visual Fault Locator Non Contact Connection VFL Fiber Optic Red Light Pen Tester 400mAh Battery Kit (7.09 inches / 18 cm)
KAIWEETS Network Cable Tester, RJ45 RJ11 Wire Tracer Line Finder, Tone Generator and Probe Kit, Cable Tracer Ethernet LAN Network Cat5 Cat6 for Cable Collation, Telephone Line Test $23.38 Was $25.98
Now$2338
current price Now $23.38, Was $25.98$25.98
KAIWEETS Network Cable Tester, RJ45 RJ11 Wire Tracer Line Finder, Tone Generator and Probe Kit, Cable Tracer Ethernet LAN Network Cat5 Cat6 for Cable Collation, Telephone Line Test
TRENDnet TC-NT2 Network Cable Tester for TP and Coax Cables with 2 RJ-45-to-BNC Adapters $39.99 Was $54.25
Now$3999
current price Now $39.99, Was $54.25$54.25
TRENDnet TC-NT2 Network Cable Tester for TP and Coax Cables with 2 RJ-45-to-BNC Adapters
34.7 out of 5 Stars. 3 reviews
Katzco, 6-12 V White Voltage Continuity & Current Circuit Tester
Katzco, 6-12 V White Voltage Continuity & Current Circuit Tester
464.5 out of 5 Stars. 46 reviews
Riousery Multifunctional Wire Tracer & Ethernet Cable Tester Kit, Digital Circuit Analyzer Line Finder with Tone Generator & Probe, RJ45 CAT5 CAT6 Fault Locator, 10.24 inches / 26 cm $80.56
$8056
current price $80.56Riousery Multifunctional Wire Tracer & Ethernet Cable Tester Kit, Digital Circuit Analyzer Line Finder with Tone Generator & Probe, RJ45 CAT5 CAT6 Fault Locator, 10.24 inches / 26 cm
YAHHU RJ45 and RJ11 Network Cable Tester Ethernet LAN Line Wire Test Tool with Detachable Remote for Telephone Line and Ethernet Connections, Blue (3.8 x 4.1 in / 9.7 x 10.3 cm) $10.47
$1047
current price $10.47YAHHU RJ45 and RJ11 Network Cable Tester Ethernet LAN Line Wire Test Tool with Detachable Remote for Telephone Line and Ethernet Connections, Blue (3.8 x 4.1 in / 9.7 x 10.3 cm)
Coaxial Cable Tester Networking Cable Tester for BNC RJ45 CAT5 CAT6 Data Coax Cable Tester Checkers Continuity Cable $20.76
$2076
current price $20.76Coaxial Cable Tester Networking Cable Tester for BNC RJ45 CAT5 CAT6 Data Coax Cable Tester Checkers Continuity Cable
M Buder Non Contact Voltage Detector Pen AC Electrical Power Cable Tester High Accuracy Sound Light Alarm, 12-1000V, 9.84 inches / 25.0 cm $14.28
$1428
current price $14.28M Buder Non Contact Voltage Detector Pen AC Electrical Power Cable Tester High Accuracy Sound Light Alarm, 12-1000V, 9.84 inches / 25.0 cm
THE CIMPLE CO - Universal Network Cable Tester Tool, BNC, RJ45, RJ11 (3-in-1) Multi-Tester Black $22.97
$2297
current price $22.97THE CIMPLE CO - Universal Network Cable Tester Tool, BNC, RJ45, RJ11 (3-in-1) Multi-Tester Black
Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester with Integrated GFCI Outlet Tester $60.00 Was $75.10
Now$6000
current price Now $60.00, Was $75.10$75.10
Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester with Integrated GFCI Outlet Tester
764.4 out of 5 Stars. 76 reviews
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