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All AgricultureAll IndustrialAgricultural Structures & HardwareCalibrationCleaning and FiltrationData 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(454)
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
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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
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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
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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
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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
2004.3 out of 5 Stars. 200 reviews
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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
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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) $20.35
$2035
current price $20.35M 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)
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
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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 $14.24
$1424
current price $14.24M Buder Non Contact Voltage Detector Pen AC Electrical Power Cable Tester High Accuracy Sound Light Alarm, 12-1000V, 9.84 inches / 25.0 cm
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
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
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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
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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 $11.17
$1117
current price $11.17M 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 $82.02
$8202
current price $82.02M 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 $32.25
$3225
current price $32.25M 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 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
144.6 out of 5 Stars. 14 reviews
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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)
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) $12.09
$1209
current price $12.09M 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 $11.77
$1177
current price $11.77Adjustable Ignition System Coil Tester Coil Connection Plug Ignition Circuit Test
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)
Power Circuit Probe Tester, 6V-24V DC Automotive Test Light with Short Circuit Finder, Polarity Identification, Component Activation & Overload Protection for Car Truck Electrical Diagnosis $15.97
Sponsored
$1597
current price $15.97Power Circuit Probe Tester, 6V-24V DC Automotive Test Light with Short Circuit Finder, Polarity Identification, Component Activation & Overload Protection for Car Truck Electrical Diagnosis
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
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) $26.78
$2678
current price $26.78YAHHU 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)
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
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) $10.44
$1044
current price $10.44YAHHU 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)
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
Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights $73.39
$7339
current price $73.39Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights
34.3 out of 5 Stars. 3 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 $80.02
$8002
current price $80.02Riousery 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
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
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
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
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Reduced price 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
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YAHHU Professional Network Cable Tester High Definition HDMI and RJ45 Ethernet Line Finder Tracker, Compact Yellow Diagnostic Testing Tool for Continuity and Short Circuit (10.5x9.5 cm / 4.1x3.7 in) $19.35
$1935
current price $19.35YAHHU Professional Network Cable Tester High Definition HDMI and RJ45 Ethernet Line Finder Tracker, Compact Yellow Diagnostic Testing Tool for Continuity and Short Circuit (10.5x9.5 cm / 4.1x3.7 in)
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
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
Save with
Yammee Gigabit Networking Cable Tester For RJ11 RJ45 Connection Telephone Line Tester $18.60
$1860
current price $18.60Yammee Gigabit Networking Cable Tester For RJ11 RJ45 Connection Telephone Line Tester
Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester with Integrated GFCI Outlet Tester $83.14
$8314
current price $83.14Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester with Integrated GFCI Outlet Tester
774.4 out of 5 Stars. 77 reviews
Lynono High Precise RJ45 RJ11 Cable Continuity Tester Suitable For Engineers And Technicians Identifying Wiring Issue In Second $26.33
$2633
current price $26.33Lynono High Precise RJ45 RJ11 Cable Continuity Tester Suitable For Engineers And Technicians Identifying Wiring Issue In Second
NOYAFA NF-8601S TDR Cable Tester 500m/1640ft - Wire Fault Locator, Power Cable & BNC Compatible, PING Test, Color Screen, Data Export, PoE From $119.37
From$11937
NOYAFA NF-8601S TDR Cable Tester 500m/1640ft - Wire Fault Locator, Power Cable & BNC Compatible, PING Test, Color Screen, Data Export, PoE
23.5 out of 5 Stars. 2 reviews
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Camco Power Grip Dogbone Circuit Analyzer for RV Camping- 30/15 Amp - 12" (55461) From $37.59
2 options
Available in additional 2 optionsFrom$3759
Camco Power Grip Dogbone Circuit Analyzer for RV Camping- 30/15 Amp - 12" (55461)
294.9 out of 5 Stars. 29 reviews
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BOKYAN HDMI High Definition Digital Cable Tester Portable RJ45 Cable Tester Tracker, 0.4 inches / 1.0 cm $21.24
$2124
current price $21.24BOKYAN HDMI High Definition Digital Cable Tester Portable RJ45 Cable Tester Tracker, 0.4 inches / 1.0 cm
Clearance STORGENER Car Circuit Tester, Wire Piercing Circuit Tester, 6-12-24V, Automotive Probe Tool Electric Trailer Wiring Diagnosis Was $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
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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
Electrical Tester | Tone Generator and Stick Kit | Circuit Fault Stick Tester for Electrical Wiring Diagnostics
Electrical Tester | Tone Generator and Stick Kit | Circuit Fault Stick Tester for Electrical Wiring Diagnostics
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
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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
1PC XLR Cable Tester for Remote Testing of Microphone Cables Without End Connection for Stage and Studio Use From $36.01
From$3601
1PC XLR Cable Tester for Remote Testing of Microphone Cables Without End Connection for Stage and Studio Use
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 $23.87
$2387
current price $23.87Suodoka 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
Monoprice RJ11 and RJ45 Modular Plug Tester $14.98
$1498
current price $14.98Monoprice RJ11 and RJ45 Modular Plug Tester
324.7 out of 5 Stars. 32 reviews
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
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