All AgricultureAll IndustrialAgricultural Structures & HardwareAir Quality & Gas AnalyzersCalibrationChemicalsData RecordersElectrical TestingElectronic & Bench TestingHumidity MonitorsInspection & Analysis ToolsLivestock SuppliesMicroscopesMotion, Speed, Force MeasurementMSANetwork and Cable TestersPH and ThermometersPressure & VacuumScalesSurface TestingTemperature & HumidityWater Quality & InstrumentationWeight, Sound, and Light MeasurementWind Speed Gauges
Sort by|
All AgricultureAll IndustrialAgricultural Structures & HardwareAir Quality & Gas AnalyzersCalibrationChemicalsData RecordersElectrical TestingElectronic & Bench TestingHumidity MonitorsInspection & Analysis ToolsLivestock SuppliesMicroscopesMotion, Speed, Force MeasurementMSANetwork and Cable TestersPH and ThermometersPressure & VacuumScalesSurface TestingTemperature & HumidityWater Quality & InstrumentationWeight, Sound, and Light MeasurementWind Speed Gauges
Connection Tester(429)
Uses item details. Price when purchased online
NOYAFA NF-8209 Network Cable Tester for LAN CAT5/CAT6 Multifunction Ethernet Wire Tracker with PoE Testing, Tone Tracer, Length Measurement, NCV & LED Lamp From $49.49
Sponsored
From$4949
NOYAFA NF-8209 Network Cable Tester for LAN CAT5/CAT6 Multifunction Ethernet Wire Tracker with PoE Testing, Tone Tracer, Length Measurement, NCV & LED Lamp
74.7 out of 5 Stars. 7 reviews
Save with
NOYAFA NF-8506 Network Cable Tester with Fiber Optic Power Meter & VFL, PoE Test, TDR Length Measurement, IP Scan, Port Flashing for CAT5/CAT6 RJ45 IT Maintenance $119.00
Sponsored
$11900
current price $119.00NOYAFA NF-8506 Network Cable Tester with Fiber Optic Power Meter & VFL, PoE Test, TDR Length Measurement, IP Scan, Port Flashing for CAT5/CAT6 RJ45 IT Maintenance
Save with
ANCEL PB500, 65V Red Digital Circuit Probe Kit Power Scan Automotive Circuit Tester From $55.59
Sponsored
From$5559
ANCEL PB500, 65V Red Digital Circuit Probe Kit Power Scan Automotive Circuit Tester
244.5 out of 5 Stars. 24 reviews
Save with
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
Universals USB Connection Tester For Multiple Cable Types OperatingExternal Power Input Insertion Testing From $11.68
From$1168
Universals USB Connection Tester For Multiple Cable Types OperatingExternal Power Input Insertion Testing
HABOTEST HT812A Network Cable Tester with RJ45 RJ11 Port,Fast/Slow Gear Ethernet Cable Tester,60V Cable Telephone Line Continuity Test for CAT5/CAT5E/CAT6/CAT6A, UTP/STP Network Test Tool $11.69
$1169
current price $11.69HABOTEST HT812A Network Cable Tester with RJ45 RJ11 Port,Fast/Slow Gear Ethernet Cable Tester,60V Cable Telephone Line Continuity Test for CAT5/CAT5E/CAT6/CAT6A, UTP/STP Network Test Tool
45 out of 5 Stars. 4 reviews
Homesteed Outlet Tester GFCI Receptacle Tester Electrical Circuit Tester for Live Neutral Ground Wire Open Reverse Connection Check
Homesteed Outlet Tester GFCI Receptacle Tester Electrical Circuit Tester for Live Neutral Ground Wire Open Reverse Connection Check
Katzco, 6-12 V White Voltage Continuity & Current Circuit Tester
Katzco, 6-12 V White Voltage Continuity & Current Circuit Tester
424.4 out of 5 Stars. 42 reviews
Save with
Best seller 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
114.5 out of 5 Stars. 11 reviews
Save with
Tone Generator Kit, Wire Tracer Circuit Tester, 200EP High Accuracy Wire Tester, Multi-Tone Cable Test with Inductive Amplifier $22.98
$2298
current price $22.98Tone Generator Kit, Wire Tracer Circuit Tester, 200EP High Accuracy Wire Tester, Multi-Tone Cable Test with Inductive Amplifier
23 out of 5 Stars. 2 reviews
Save with
Visual Fault Locator 30KM VFL Fiber Optic Tester Kit Include Single Mode 9/125um FC Male to LC Female Adapter Fiber Optic Light for Network Cable (Battery not Included) $15.89
Sponsored
$1589
current price $15.89Visual Fault Locator 30KM VFL Fiber Optic Tester Kit Include Single Mode 9/125um FC Male to LC Female Adapter Fiber Optic Light for Network Cable (Battery not Included)
Wire Tracer Tone Generator and Probe Kit, Kvago Cable Tracker, Cable Finder with RJ11 Plug, Cable Tester, Circuit Continuity Tester $16.99
Sponsored
$1699
current price $16.99Wire Tracer Tone Generator and Probe Kit, Kvago Cable Tracker, Cable Finder with RJ11 Plug, Cable Tester, Circuit Continuity Tester
35 out of 5 Stars. 3 reviews
Save with
Clearance Katzco Circuit Continuity Tester - 6-12 Volt with 12 Foot Lead and Light Indicator for Fuse Testing, Light Sockets, Short Circuits, Wires, Electricians, Mechanics, Homeowners and Car Batteries $7.84 Was $11.99
Now$784
current price Now $7.84, Was $11.99$11.99
Katzco Circuit Continuity Tester - 6-12 Volt with 12 Foot Lead and Light Indicator for Fuse Testing, Light Sockets, Short Circuits, Wires, Electricians, Mechanics, Homeowners and Car Batteries
65 out of 5 Stars. 6 reviews
Save with
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 $11.99
$1199
current price $11.99Automotive 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
74.9 out of 5 Stars. 7 reviews
Save with
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
35 out of 5 Stars. 3 reviews
Save with
7 Way Trailer Plug Tester, 7 Pin Trailer Wiring Tester, Trailer Light Tester for RV, Truck, Trailer Electrical Connector $15.81
$1581
current price $15.817 Way Trailer Plug Tester, 7 Pin Trailer Wiring Tester, Trailer Light Tester for RV, Truck, Trailer Electrical Connector
Upgraded Power Circuit Probe Tester, 9-30V DC Automotive Electrical System Diagnostic Pen W/ LCD Screen & Buzzer Alarm, 20ft Wire - Powered by 12V / 24V Battery $115.99
$11599
current price $115.99Upgraded Power Circuit Probe Tester, 9-30V DC Automotive Electrical System Diagnostic Pen W/ LCD Screen & Buzzer Alarm, 20ft Wire - Powered by 12V / 24V Battery
Power Probe PWP-PP3CSGRN, 12V Green Digital Circuit Tester $180.16 $180.16/count
$18016
current price $180.16$180.16/count
Power Probe PWP-PP3CSGRN, 12V Green Digital Circuit Tester
25 out of 5 Stars. 2 reviews
UT681 HDMI Cable Tester, Portable Mini HDMI to HDMI, High Definition USB Cable Tester, for Check Disorder Short Open and Cross Connection$$other $74.95
$7495
current price $74.95UT681 HDMI Cable Tester, Portable Mini HDMI to HDMI, High Definition USB Cable Tester, for Check Disorder Short Open and Cross Connection$$other
7 Pin Connection Tester $17.40
$1740
current price $17.407 Pin Connection Tester
Adjustable Ignition Coil Tester Spark Circuit Tester for Small Engines and Automotive, Diagnostic Test Tool, Easy Operation, Durable Build $22.27
Sponsored
$2227
current price $22.27Adjustable Ignition Coil Tester Spark Circuit Tester for Small Engines and Automotive, Diagnostic Test Tool, Easy Operation, Durable Build
SOXOTOG Automotive Circuit Fault Probe Tester, 20A 48V-High-Precision Current Tester, 2-in-1 Wire Tracer Short Finder, Car Relay Fuse Checker with LED Display & Front Light $21.99 Was $29.99
Sponsored
Now$2199
current price Now $21.99, Was $29.99$29.99
SOXOTOG Automotive Circuit Fault Probe Tester, 20A 48V-High-Precision Current Tester, 2-in-1 Wire Tracer Short Finder, Car Relay Fuse Checker with LED Display & Front Light
Save with
5-in-1 Cable Tester $58.46
$5846
current price $58.465-in-1 Cable Tester
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
Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester with Integrated GFCI Outlet Tester $52.56
$5256
current price $52.56Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester with Integrated GFCI Outlet Tester
754.4 out of 5 Stars. 75 reviews
Plugable USB C Power Meter Tester for Monitoring USB-C Connections $26.95
$2695
current price $26.95Plugable USB C Power Meter Tester for Monitoring USB-C Connections
35 out of 5 Stars. 3 reviews
Save with
Fiber Visual Fault Locator 50mw Vfl Fiber Optic Cable Tester Meter, Red Light Pen Tester 50km Non Contact Connection $48.88
$4888
current price $48.88Fiber Visual Fault Locator 50mw Vfl Fiber Optic Cable Tester Meter, Red Light Pen Tester 50km Non Contact Connection
Circuit Tester, Wire Tracer and Tone Generator, Network Cable Tester RJ-11 Jack, Wires and Cables Finder and Locator, Circuit Continuity Test $13.99
$1399
current price $13.99Circuit Tester, Wire Tracer and Tone Generator, Network Cable Tester RJ-11 Jack, Wires and Cables Finder and Locator, Circuit Continuity Test
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)
284.9 out of 5 Stars. 28 reviews
Save with
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
15 out of 5 Stars. 1 reviews
UT-LNTELA EM415PRO Automotive Electrical Circuit Tester, 6-42V Car Circuit Scanner Wire Tracer for Cars, Trucks and Boats $14.99
Sponsored
$1499
current price $14.99UT-LNTELA EM415PRO Automotive Electrical Circuit Tester, 6-42V Car Circuit Scanner Wire Tracer for Cars, Trucks and Boats
Autel IM608S II Scanner with Power Circuit Tester PS100 $2,879.00
Sponsored
$2,87900
current price $2,879.00Autel IM608S II Scanner with Power Circuit Tester PS100
K Tool XDCHT504 Cordless Circuit Tester LED Polarity Audible Alert $40.67 $40.67/count
$4067
current price $40.67$40.67/count
K Tool XDCHT504 Cordless Circuit Tester LED Polarity Audible Alert
15 out of 5 Stars. 1 reviews
Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights $74.45
$7445
current price $74.45Autel PowerScan PS100 Automotive Circuit Tester with AVOmeter, 20ft Cable, Lights
Yammee Gigabit Networking Cable Tester For RJ11 RJ45 Connection Telephone Line Tester $18.33
$1833
current price $18.33Yammee Gigabit Networking Cable Tester For RJ11 RJ45 Connection Telephone Line Tester
Allosun Automotive Short and Open Finder - Short Circuit Tester Cable Wire Tracker EM415PRO+ From $22.59
From$2259
Allosun Automotive Short and Open Finder - Short Circuit Tester Cable Wire Tracker EM415PRO+
74.7 out of 5 Stars. 7 reviews
GJX Circuit Breaker Finder Socket Tester With LED Indicator,Adjustable Sensitivity Circuit Breaker Finder Tool Kit For House,Office,Power Network Reconstruction $29.03
$2903
current price $29.03GJX Circuit Breaker Finder Socket Tester With LED Indicator,Adjustable Sensitivity Circuit Breaker Finder Tool Kit For House,Office,Power Network Reconstruction
Treedix Cable Tester Board for HDMI Cable Tester Checker 20 LED Light Status Indictor to Check Disorder Short Open and Cross Connection for HDMI A Type, HDMI C Type, HDMI D Type $18.99
$1899
current price $18.99Treedix Cable Tester Board for HDMI Cable Tester Checker 20 LED Light Status Indictor to Check Disorder Short Open and Cross Connection for HDMI A Type, HDMI C Type, HDMI D Type
Coaxial Cable Tester Networking Cable Tester for BNC RJ45 CAT5 CAT6 Data Coax Cable Tester Checkers Continuity Cable $20.69
$2069
current price $20.69Coaxial Cable Tester Networking Cable Tester for BNC RJ45 CAT5 CAT6 Data Coax Cable Tester Checkers Continuity Cable
Online LED Store, Nickel-Plated 5-Way Flat Circuit Tester $7.50
$750
current price $7.50Online LED Store, Nickel-Plated 5-Way Flat Circuit Tester
25 out of 5 Stars. 2 reviews
Monoprice RJ11 and RJ45 Modular Plug Tester $13.03 Was $14.97
Now$1303
current price Now $13.03, Was $14.97$14.97
Monoprice RJ11 and RJ45 Modular Plug Tester
294.8 out of 5 Stars. 29 reviews
NOYAFA NF-8506 Network Cable Tester with Fiber Optic Power Meter & VFL, PoE Test, TDR Length Measurement, IP Scan, Port Flashing for CAT5/CAT6 RJ45 IT Maintenance $119.00
$11900
current price $119.00NOYAFA NF-8506 Network Cable Tester with Fiber Optic Power Meter & VFL, PoE Test, TDR Length Measurement, IP Scan, Port Flashing for CAT5/CAT6 RJ45 IT Maintenance
Save with
Circuit Tracer,Wire Tracer Electrical,Automotive Electrical Open&Short Finder Circuit Tester,Wire Cable Tracker Electrical,DC 6-42V Automotive Wire Tester Electrical Tool $25.50
$2550
current price $25.50Circuit Tracer,Wire Tracer Electrical,Automotive Electrical Open&Short Finder Circuit Tester,Wire Cable Tracker Electrical,DC 6-42V Automotive Wire Tester Electrical Tool
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
Equus Products Electrical Circuit Testing Tool $108.46
$10846
current price $108.46Equus Products Electrical Circuit Testing Tool
274.8 out of 5 Stars. 27 reviews
THE CIMPLE CO - Universal Network Cable Tester Tool, BNC, RJ45, RJ11, USB (4-in-1) Multi-Tester $28.97
$2897
current price $28.97THE CIMPLE CO - Universal Network Cable Tester Tool, BNC, RJ45, RJ11, USB (4-in-1) Multi-Tester
15 out of 5 Stars. 1 reviews
Coaxial (Coax) Cable Tester Networking Cable Tester for Data Coax Cable RJ45 CAT5 $18.02
$1802
current price $18.02Coaxial (Coax) Cable Tester Networking Cable Tester for Data Coax Cable RJ45 CAT5
LEORX Trailer Connection Tester Circuit Continuity Test Tool for Trailer Socket Black 1Pcs $4.74
$474
current price $4.74LEORX Trailer Connection Tester Circuit Continuity Test Tool for Trailer Socket Black 1Pcs
NF-8601W Network Cable Tester RJ45 RJ11 BNC Multifunction POE Crosstalk Lan Network Test 8pcs Remot Cable Tracker $277.68
$27768
current price $277.68NF-8601W Network Cable Tester RJ45 RJ11 BNC Multifunction POE Crosstalk Lan Network Test 8pcs Remot Cable Tracker
MGAXYFF UT25A, 110-125V Black Circuit Breaker Finder Circuit Tester 2 Piece $35.18
$3518
current price $35.18MGAXYFF UT25A, 110-125V Black Circuit Breaker Finder Circuit Tester 2 Piece
15 out of 5 Stars. 1 reviews
Other options to consider(14)
Popular in Connection Tester
Related Products
35 Optical Fiber Power Meter -70-+10dBM -50-+26dBm OPM FTTH Tool Tester 7 Wavelength Detection ,Easy Use
35 Optical Fiber Power Meter -70-+10dBM -50-+26dBm OPM FTTH Tool Tester 7 Wavelength Detection ,Easy Use$66.89current price $66.89ProMariner Hand Held DC System Tester [87710]
![ProMariner Hand Held DC System Tester [87710]](https://i5.walmartimages.com/seo/ProMariner-Hand-Held-DC-System-Tester-87710_493fd810-cb03-45ae-9e26-e02554b21f48_1.53af3e30a549824c302e6e0cae08ec6c.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
ProMariner Hand Held DC System Tester [87710]$24.67current price $24.67Sanwa DCM2000DR Clamp Meter AC/DC Max Current 2000A - CAT IV 1000V
Sanwa DCM2000DR Clamp Meter AC/DC Max Current 2000A - CAT IV 1000V$349.80current price $349.80Amprobe Clamp Meter,600A,1-3/8inCap,With Thrmcpl AMP-320
Amprobe Clamp Meter,600A,1-3/8inCap,With Thrmcpl AMP-320$366.46current price $366.46Fiber Optic Tester Pen Type Red Light Visual Fault Locator, Rechargeable Optical Cable Test,Optical Power Meter B3S05 5Mw , fine workmanship
Fiber Optic Tester Pen Type Red Light Visual Fault Locator, Rechargeable Optical Cable Test,Optical Power Meter B3S05 5Mw , fine workmanship$32.02current price $32.02UNI-T UT204+ Digital Clamp Meter 600A True RMS Multimeter with NCV, Amp, Volt, Ohm, Diode, Capacitance, Temperature Test
UNI-T UT204+ Digital Clamp Meter 600A True RMS Multimeter with NCV, Amp, Volt, Ohm, Diode, Capacitance, Temperature Test$42.99current price $42.99Multimeters,Wire Lcd Display Pen Professional Resistance Meter Live Wire 2in1 Test Pen Test Meter Live Resistance Test Meter Siuke Dsfen Buzhi Wenzi Tester. Multicolor high configuration
Multimeters,Wire Lcd Display Pen Professional Resistance Meter Live Wire 2in1 Test Pen Test Meter Live Resistance Test Meter Siuke Dsfen Buzhi Wenzi Tester. Multicolor high configuration$15.42current price $15.42Hubbell Wiring Device-Kellems Circuit Tester, LED, 250VAC HBLT2321
Hubbell Wiring Device-Kellems Circuit Tester, LED, 250VAC HBLT2321$114.29current price $114.29Amprobe Clamp Meter,TRMS,Dual LCD ACD-14-PRO
Amprobe Clamp Meter,TRMS,Dual LCD ACD-14-PRO$268.00current price $268.00Sanwa PDM5219S Analog Insulation Tester, 125V/250V/500V
Sanwa PDM5219S Analog Insulation Tester, 125V/250V/500V$287.13current price $287.13Gardner Bender Twin Probe Low Voltage Tester GET-3202
Gardner Bender Twin Probe Low Voltage Tester GET-3202$11.42current price $11.42
