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All AgricultureAll IndustrialAgricultural Structures & HardwareCalibrationData RecordersElectrical TestingHumidity MonitorsInspection & Analysis ToolsLivestock SuppliesMicroscopesMotion, Speed, Force MeasurementNetwork and Cable TestersPH and ThermometersPressure & VacuumScalesSurface TestingTemperature & HumidityWater Quality & InstrumentationWeather StationsWeight, Sound, and Light MeasurementWind Speed Gauges
Connection Tester(455)
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
224.7 out of 5 Stars. 22 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
274.5 out of 5 Stars. 27 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
Reduced price NOYAFA NF-8509 Wire Tracker & Multimeter, RJ45 Cable Tester with POE Test, Port Flashing, NCV, CAT5/CAT6/CAT7 $50.99 Was $65.99
Sponsored
Now$5099
current price Now $50.99, Was $65.99$65.99
NOYAFA NF-8509 Wire Tracker & Multimeter, RJ45 Cable Tester with POE Test, Port Flashing, NCV, CAT5/CAT6/CAT7
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
2034.4 out of 5 Stars. 203 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 Was $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
274.9 out of 5 Stars. 27 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
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 $10.08
$1008
current price $10.08Rupoun 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
NFTIGB Non Contact Voltage Detector Pen AC Electrical Power Cable Tester High Accuracy Circuit Troubleshooting Tool with Sound Light Alarm & LED Flashlight (25.00 in / 63.5 cm) $19.24
$1924
current price $19.24NFTIGB Non Contact Voltage Detector Pen AC Electrical Power Cable Tester High Accuracy Circuit Troubleshooting Tool with Sound Light Alarm & LED Flashlight (25.00 in / 63.5 cm)
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 $9.99
$999
current price $9.99Automotive 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
154.7 out of 5 Stars. 15 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
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
M Buder Portable RJ11 Network Cable Tester Toner Wire Tracker Tone Line Finder Detector Networking Tool for Telephone Lines, Yellow, 10.24 inches / 26 cm $17.32
$1732
current price $17.32M Buder Portable RJ11 Network Cable Tester Toner Wire Tracker Tone Line Finder Detector Networking Tool for Telephone Lines, Yellow, 10.24 inches / 26 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 $10.68
$1068
current price $10.68M 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
NFTIGB Network Cable Tester Multifunctional Ethernet Signal Line Finder with Earphone RJ11 RJ45 Connections M469C Open Short Circuit Verification Tool $26.63
$2663
current price $26.63NFTIGB Network Cable Tester Multifunctional Ethernet Signal Line Finder with Earphone RJ11 RJ45 Connections M469C Open Short Circuit Verification Tool
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 $77.90
$7790
current price $77.90M 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
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 $31.81
$3181
current price $31.81M 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
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) $36.04
$3604
current price $36.04Rupoun 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)
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 $15.24
$1524
current price $15.24M Buder Non Contact Voltage Detector Pen AC Electrical Power Cable Tester High Accuracy Sound Light Alarm, 12-1000V, 9.84 inches / 25.0 cm
NFTIGB Professional Network Cable Tester for Lan RJ45 RJ11 PC Network Hand Tools, Accurate Line Tracker and Ethernet Diagnostic Device for Home and Office Use, White $20.08
$2008
current price $20.08NFTIGB Professional Network Cable Tester for Lan RJ45 RJ11 PC Network Hand Tools, Accurate Line Tracker and Ethernet Diagnostic Device for Home and Office Use, White
In 25+ people's carts STORGENER Car Circuit Tester, Wire Piercing Circuit Tester, 6-12-24V, Automotive Probe Tool Electric Trailer Wiring Diagnosis From $10.62
Sponsored
From$1062
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
Power Circuit Probe Tester, 6V-24V DC Automotive Test Light, Short Circuit Finder, Polarity Identification, Component Activation, Overload Protection $15.99
Sponsored
$1599
current price $15.99Power Circuit Probe Tester, 6V-24V DC Automotive Test Light, Short Circuit Finder, Polarity Identification, Component Activation, Overload Protection
Wire Tracer Tone Generator and Probe Kit, Kvago Cable Tracker, Cable Finder with RJ11 Plug, Cable Tester, Circuit Continuity Tester $16.99
$1699
current price $16.99Wire Tracer Tone Generator and Probe Kit, Kvago Cable Tracker, Cable Finder with RJ11 Plug, Cable Tester, Circuit Continuity Tester
54.6 out of 5 Stars. 5 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
73.9 out of 5 Stars. 7 reviews
NFTIGB Portable RJ11 Network Cable Tester Toner Wire Tracker Tone Line Finder Detector Professional Networking Cable Tracker Diagnostics Maintenance Tool Kit $22.32
$2232
current price $22.32NFTIGB Portable RJ11 Network Cable Tester Toner Wire Tracker Tone Line Finder Detector Professional Networking Cable Tracker Diagnostics Maintenance Tool Kit
NFTIGB Multifunctional Wire Tracer & CAT5 CAT6 Network Cable Tester, Line Finder Digital Circuit Analyzer with Multimeter Functions, 10.2 x 6.7 x 2.4 in / 26.0 x 17.0 x 6.0 cm $93.97
$9397
current price $93.97NFTIGB Multifunctional Wire Tracer & CAT5 CAT6 Network Cable Tester, Line Finder Digital Circuit Analyzer with Multimeter Functions, 10.2 x 6.7 x 2.4 in / 26.0 x 17.0 x 6.0 cm
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) $40.40
$4040
current price $40.40M 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)
Adjustable Ignition System Coil Tester Coil Connection Plug Ignition Circuit Test $11.77
$1177
current price $11.77Adjustable Ignition System Coil Tester Coil Connection Plug Ignition Circuit Test
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) $26.35
$2635
current price $26.35YAHHU 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)
BIMZUC Network Cable Tester for RJ45 and RJ11 Ethernet LAN Connections, Portable Line Tracker and Computer Networking Tool, White, 4.13 inches / 10.5 cm $23.08
$2308
current price $23.08BIMZUC Network Cable Tester for RJ45 and RJ11 Ethernet LAN Connections, Portable Line Tracker and Computer Networking Tool, White, 4.13 inches / 10.5 cm
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
Pass Through RJ45 Crimp Tool Kit, Ethernet Crimper Cat7 Cat6 Cat5 Crimping Tool with Network Cable Tester, 50-Pack Cat6 RJ45 Pass Through Connector, 50-Pack Connector Boots $40.57
Sponsored
$4057
current price $40.57Pass Through RJ45 Crimp Tool Kit, Ethernet Crimper Cat7 Cat6 Cat5 Crimping Tool with Network Cable Tester, 50-Pack Cat6 RJ45 Pass Through Connector, 50-Pack Connector Boots
24Pin Charging Cable Tester USB C Connection Diagnostic LED Circuit Testing Tool $7.19 Was $8.09
Now$719
current price Now $7.19, Was $8.09$8.09
24Pin Charging Cable Tester USB C Connection Diagnostic LED Circuit Testing Tool
Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights $89.94
$8994
current price $89.94Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights
34.3 out of 5 Stars. 3 reviews
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) $9.75
$975
current price $9.75YAHHU 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)
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) $26.53
$2653
current price $26.53M 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)
Clearance Yammee Gigabit Networking Cable Tester For RJ11 RJ45 Connection Telephone Line Tester $16.65 Was $18.60
Now$1665
current price Now $16.65, Was $18.60$18.60
Yammee Gigabit Networking Cable Tester For RJ11 RJ45 Connection Telephone Line Tester
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
BIMZUC Network Cable Tester Multi Functional Anti Interference Wire Tracer Ethernet Cable Tester for Troubleshooting Maintenance Kit with Built In Battery $82.97
$8297
current price $82.97BIMZUC Network Cable Tester Multi Functional Anti Interference Wire Tracer Ethernet Cable Tester for Troubleshooting Maintenance Kit with Built In Battery
Camco Power Grip Dogbone Circuit Analyzer for RV Camping- 30/15 Amp - 12" (55461) From $43.97
2 options
Available in additional 2 optionsFrom$4397
Camco Power Grip Dogbone Circuit Analyzer for RV Camping- 30/15 Amp - 12" (55461)
294.9 out of 5 Stars. 29 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 $84.97
$8497
current price $84.97Riousery 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
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 Circuit Tester 6-42V Wire Tracer, Short Circuit Finder and Cable Tracker with Flexible Probe, Electrical Diagnostic Tool for Car, Boat, Trailer and RV $15.99
$1599
current price $15.99Automotive Circuit Tester 6-42V Wire Tracer, Short Circuit Finder and Cable Tracker with Flexible Probe, Electrical Diagnostic Tool for Car, Boat, Trailer and RV
GUYUTING Portable Trailer Tester For 7/13 Pin Connectors, Black Circuit Analyzer For Car Caravan Trailer Truck Fault Checking $25.91
$2591
current price $25.91GUYUTING Portable Trailer Tester For 7/13 Pin Connectors, Black Circuit Analyzer For Car Caravan Trailer Truck Fault Checking
NFTIGB YG916H Multifunctional Network Cable Tester Wire Line Finder Industrial Control Elements for RJ45 and HDMI Cables High Precision Fault Detector (6.69 inches / 17 cm) $17.41
$1741
current price $17.41NFTIGB YG916H Multifunctional Network Cable Tester Wire Line Finder Industrial Control Elements for RJ45 and HDMI Cables High Precision Fault Detector (6.69 inches / 17 cm)
Coaxial Cable Tester Networking Cable Tester for BNC RJ45 CAT5 CAT6 Data Coax Cable Tester Checkers Continuity Cable $19.72
$1972
current price $19.72Coaxial Cable Tester Networking Cable Tester for BNC RJ45 CAT5 CAT6 Data Coax Cable Tester Checkers Continuity Cable
In 25+ people's carts STORGENER Car Circuit Tester, Wire Piercing Circuit Tester, 6-12-24V, Automotive Probe Tool Electric Trailer Wiring Diagnosis
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
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
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
224.7 out of 5 Stars. 22 reviews
Lynono High Precise RJ45 RJ11 Cable Continuity Tester Suitable For Engineers And Technicians Identifying Wiring Issue In Second $18.69
$1869
current price $18.69Lynono High Precise RJ45 RJ11 Cable Continuity Tester Suitable For Engineers And Technicians Identifying Wiring Issue In Second
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