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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(456)
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
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
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
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
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
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
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)
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 $14.23
$1423
current price $14.23M 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
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
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
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 $82.53
$8253
current price $82.53M 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
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 $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
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 $14.95
$1495
current price $14.95Adjustable 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)
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
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
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) $27.01
$2701
current price $27.01YAHHU 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)
Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights $73.43
$7343
current price $73.43Autel 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) $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
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
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 $80.53
$8053
current price $80.53Riousery 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
Autel PowerScan PS100 Automotive Circuit Tester, Power Circuit Probe Scan Tool, 12-24V Electrical Short Open Breaker Circuit Finder, AC/DC Current Resistance, 20ft Extension Cord, for 99% Car $89.99
Sponsored
$8999
current price $89.99Autel PowerScan PS100 Automotive Circuit Tester, Power Circuit Probe Scan Tool, 12-24V Electrical Short Open Breaker Circuit Finder, AC/DC Current Resistance, 20ft Extension Cord, for 99% Car
35 out of 5 Stars. 3 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) $26.50
$2650
current price $26.50M 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)
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)
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
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 $23.85
$2385
current price $23.85Suodoka 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
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
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
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
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
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
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
THE CIMPLE CO - Coaxial Tester Kit - Pocket Toner, Tracer, Finder and Barrel Connector Set $27.97
$2797
current price $27.97THE CIMPLE CO - Coaxial Tester Kit - Pocket Toner, Tracer, Finder and Barrel Connector Set
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
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
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
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
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
LASE CT-88C Multi-Function Cable Tester HDMI PowerCon Speakon XLR DIN RCA BNC $99.00
$9900
current price $99.00LASE CT-88C Multi-Function Cable Tester HDMI PowerCon Speakon XLR DIN RCA BNC
25 out of 5 Stars. 2 reviews
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
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