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Safety Equipment and GearAir QualityAir ToolsAll Tool SetsBathroom Cabinets & FixturesBathroom HardwareBathroom PlumbingBrackets and Angle IronsBreakers, Distributors, and Load CentersCarpet TileCaulking & SealantsCeramic TileChains, Ropes and TiedownsCommercial LightingDeckingDimmers, Switches, and Wall PlatesElectric MotorsElectrical ToolsElectronic Communication ComponentsEmergency SuppliesFastenersFire SafetyFireplacesFlashlightsFlooring Accessories & ToolsFlooring by RoomFoam Multi-Purpose FlooringFurniture HardwareGarage Storage SystemsHand ToolsHardware KnobsHome SafetyHooksKitchen Fixtures and MaterialsKitchen HardwareKitchen PlumbingMailboxes and Mailbox AccessoriesMechanics ToolsOutdoor DrainageOutletsPaint Supplies & ToolsPersonal PreparednessPersonal Protective EquipmentPlug AdaptersPower Tool AccessoriesPower ToolsPro ToolsProjectsRailingSafety DetectorsSealants, Fillers and AdhesivesShop Plumbing by FixtureSolderingStair PartsStanleyStorage ContainersStorm & Flood PrepTestersTile by ApplicationTile by ColorTile by MaterialTile by RoomTile by StyleTool Equipment & StorageValves & Valve RepairVinyl FlooringWall DecalsWall PanelsWallpaperWallpaper by ThemeWater FiltersWeatherproof CoversWeatherstrippingWeldersWildfire PrepWinter PrepWoodworking Tools

Checker Tool

Uses item details. Price when purchased online

Best seller, Hyper Tough Non-Contact Voltage Detector, 701000V AC, LED and Audible Alert $9.97

Best seller
Hyper Tough Non-Contact Voltage Detector, 701000V AC, LED and Audible Alert
current price $9.97

Hyper Tough Non-Contact Voltage Detector, 701000V AC, LED and Audible Alert

4.3 out of 5 stars
4.3 out of 5 Stars. 437 reviews

OKYMOTOR Nut and Bolt Thread Checker Aluminum Alloy 34 Thread Identifier Gauge Precise Inch and Metric Screw Size and Thread Gauge Standard Measuring Tool for Nuts Bolts Screws $29.99

OKYMOTOR Nut and Bolt Thread Checker Aluminum Alloy 34 Thread Identifier Gauge Precise Inch and Metric Screw Size and Thread Gauge Standard Measuring Tool for Nuts Bolts Screws
current price $29.99

OKYMOTOR Nut and Bolt Thread Checker Aluminum Alloy 34 Thread Identifier Gauge Precise Inch and Metric Screw Size and Thread Gauge Standard Measuring Tool for Nuts Bolts Screws

4.8 out of 5 stars
4.8 out of 5 Stars. 13 reviews

Hyper Tough Hyper Stack Electrical Tester Kit with Digital Multimeter, Non-Contact Voltage Tester, GFCI Outlet Tester and Storage Case $39.97

Hyper Tough Hyper Stack Electrical Tester Kit with Digital Multimeter, Non-Contact Voltage Tester, GFCI Outlet Tester and Storage Case
current price $39.97

Hyper Tough Hyper Stack Electrical Tester Kit with Digital Multimeter, Non-Contact Voltage Tester, GFCI Outlet Tester and Storage Case

4.8 out of 5 stars
4.8 out of 5 Stars. 16 reviews

34 Hole Thread Checker, Nut and Bolt Thread Size Checker, Screw Identification Gauge, 17 Standard Threads and 17 Metric Threads with 8 Hole Drill Gauge （Red) From $15.47

34 Hole Thread Checker, Nut and Bolt Thread Size Checker, Screw Identification Gauge, 17 Standard Threads and 17 Metric Threads with 8 Hole Drill Gauge （Red)
red, variant on 34 Hole Thread Checker, Nut and Bolt Thread Size Checker, Screw Identification Gauge, 17 Standard Threads and 17 Metric Threads with 8 Hole Drill Gauge （Red)
Black-34hole, variant on 34 Hole Thread Checker, Nut and Bolt Thread Size Checker, Screw Identification Gauge, 17 Standard Threads and 17 Metric Threads with 8 Hole Drill Gauge （Red)
Red-34hole, variant on 34 Hole Thread Checker, Nut and Bolt Thread Size Checker, Screw Identification Gauge, 17 Standard Threads and 17 Metric Threads with 8 Hole Drill Gauge （Red)
Options
From$1547

34 Hole Thread Checker, Nut and Bolt Thread Size Checker, Screw Identification Gauge, 17 Standard Threads and 17 Metric Threads with 8 Hole Drill Gauge （Red)

5 out of 5 stars
5 out of 5 Stars. 17 reviews

Digital Battery Capacity Checker RC CellMeter 7 Cellmeter-7 - NiMH Nicd with Balance Function $9.37

Digital Battery Capacity Checker RC CellMeter 7 Cellmeter-7 - NiMH Nicd with Balance Function
current price $9.37

Digital Battery Capacity Checker RC CellMeter 7 Cellmeter-7 - NiMH Nicd with Balance Function

2 Pcs New Bolt Size Finder Keychain Portable Precise Thread Size Checker Keychain Upgraded Nut Thread Checker Quick Manual Measurement Identifier Hex Nut Thread Gauge $11.99

2 Pcs New Bolt Size Finder Keychain Portable Precise Thread Size Checker Keychain Upgraded Nut Thread Checker Quick Manual Measurement Identifier Hex Nut Thread Gauge
current price $11.99

2 Pcs New Bolt Size Finder Keychain Portable Precise Thread Size Checker Keychain Upgraded Nut Thread Checker Quick Manual Measurement Identifier Hex Nut Thread Gauge

2.8 out of 5 stars
2.8 out of 5 Stars. 9 reviews

Best seller, Hyper Tough GFCI Receptacle Tester with Wiring Fault Indicator, 95125V AC $7.28

Best seller
Hyper Tough GFCI Receptacle Tester with Wiring Fault Indicator, 95125V AC
current price $7.28

Hyper Tough GFCI Receptacle Tester with Wiring Fault Indicator, 95125V AC

4.8 out of 5 stars
4.8 out of 5 Stars. 268 reviews

RC Cellmeter 8 Digital Battery Capacity Checker Controller Tester Voltage Tester for - NiMH Nicd Cell Meter Black,1 x battery tester,Black $10.79

RC Cellmeter 8 Digital Battery Capacity Checker Controller Tester Voltage Tester for - NiMH Nicd Cell Meter Black,1 x battery tester,Black
current price $10.79

RC Cellmeter 8 Digital Battery Capacity Checker Controller Tester Voltage Tester for - NiMH Nicd Cell Meter Black,1 x battery tester,Black

Best seller, Ustris 2 Pack Battery Tester, Universal Battery Checker for AA / AAA / C / D / 9V / 1.5V Button Cell Batteries $11.99

Best seller
Ustris 2 Pack Battery Tester, Universal Battery Checker for AA / AAA / C / D / 9V / 1.5V Button Cell Batteries
current price $11.99

Ustris 2 Pack Battery Tester, Universal Battery Checker for AA / AAA / C / D / 9V / 1.5V Button Cell Batteries

4.5 out of 5 stars
4.5 out of 5 Stars. 26 reviews

Hyper Tough GFCI & Outlet Tester, Easy-To-Read Sides That Turn Green When Correct, CAT II $9.88

Hyper Tough GFCI & Outlet Tester, Easy-To-Read Sides That Turn Green When Correct, CAT II
current price $9.88

Hyper Tough GFCI & Outlet Tester, Easy-To-Read Sides That Turn Green When Correct, CAT II

4.5 out of 5 stars
4.5 out of 5 Stars. 11 reviews

NFTIGB Portable Button Cell Battery Tester Meter Tool with Crisp Screen Display for 1.5V 3V Small Batteries Household Checker Detector, High Precision ABS Diagnostic Essential $11.55 Was $12.94

NFTIGB Portable Button Cell Battery Tester Meter Tool with Crisp Screen Display for 1.5V 3V Small Batteries Household Checker Detector, High Precision ABS Diagnostic Essential
current price Now $11.55, Was $12.94

NFTIGB Portable Button Cell Battery Tester Meter Tool with Crisp Screen Display for 1.5V 3V Small Batteries Household Checker Detector, High Precision ABS Diagnostic Essential

Digital Battery Capacity Checker RC CellMeter 7 Cellmeter-7 - NiMH Nicd with Balance Function $10.99

Digital Battery Capacity Checker RC CellMeter 7 Cellmeter-7 - NiMH Nicd with Balance Function
current price $10.99

Digital Battery Capacity Checker RC CellMeter 7 Cellmeter-7 - NiMH Nicd with Balance Function

Hyper Tough Digital Clamp Meter, 400A AC Current, 300V AC/DC Voltage, LCD Display $29.48

Hyper Tough Digital Clamp Meter, 400A AC Current, 300V AC/DC Voltage, LCD Display
current price $29.48

Hyper Tough Digital Clamp Meter, 400A AC Current, 300V AC/DC Voltage, LCD Display

3.7 out of 5 stars
3.7 out of 5 Stars. 87 reviews

Hyper Tough 3-Piece Electrical Tester Kit with Digital Multimeter, Voltage Detector and Outlet Tester $39.97

Hyper Tough 3-Piece Electrical Tester Kit with Digital Multimeter, Voltage Detector and Outlet Tester
current price $39.97

Hyper Tough 3-Piece Electrical Tester Kit with Digital Multimeter, Voltage Detector and Outlet Tester

4.5 out of 5 stars
4.5 out of 5 Stars. 95 reviews

Best seller, TESMEN TN-213 Non-Contact Voltage Tester, Voltage Tester Pen and Electric Tester Pen with Dual Sensitivity, LED Indicator and Waterproof Design $14.99 Was $19.99

Best seller
TESMEN TN-213 Non-Contact Voltage Tester, Voltage Tester Pen and Electric Tester Pen with Dual Sensitivity, LED Indicator and Waterproof Design
current price Now $14.99, Was $19.99

TESMEN TN-213 Non-Contact Voltage Tester, Voltage Tester Pen and Electric Tester Pen with Dual Sensitivity, LED Indicator and Waterproof Design

4.6 out of 5 stars
4.6 out of 5 Stars. 70 reviews

214-Piece Thread Checker Kit with 37 SAE and 33 Metric Thread Gauges Plus 144 Drill Bit Gauges, Detachable Pull-Out Design for Tight Spaces, Bolt Size Finder $99.98

214-Piece Thread Checker Kit with 37 SAE and 33 Metric Thread Gauges Plus 144 Drill Bit Gauges, Detachable Pull-Out Design for Tight Spaces, Bolt Size Finder
current price $99.98

214-Piece Thread Checker Kit with 37 SAE and 33 Metric Thread Gauges Plus 144 Drill Bit Gauges, Detachable Pull-Out Design for Tight Spaces, Bolt Size Finder

Wera TOOL-CHECK PLUS 1 : Metric/Imperial, 1/4" $98.99

Wera TOOL-CHECK PLUS 1 : Metric/Imperial, 1/4"
current price $98.99

Wera TOOL-CHECK PLUS 1 : Metric/Imperial, 1/4"

5 out of 5 stars
5 out of 5 Stars. 2 reviews

Best seller, D-FantiX Battery Tester, Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries Model BT-168 $10.99 Was $15.99

Best seller
D-FantiX Battery Tester, Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries Model BT-168
current price Now $10.99, Was $15.99

D-FantiX Battery Tester, Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries Model BT-168

4.5 out of 5 stars
4.5 out of 5 Stars. 887 reviews

Universal Battery Tester Checker Meter for AA AAA C D N 1.55V 9V Button Cell $10.00

Universal Battery Tester Checker Meter for AA AAA C D N 1.55V 9V Button Cell
current price $10.00

Universal Battery Tester Checker Meter for AA AAA C D N 1.55V 9V Button Cell

4.1 out of 5 stars
4.1 out of 5 Stars. 20 reviews

1.5V Non-Contact 50 - 1000V AC Cordless Voltage Tester Pen $22.24

1.5V Non-Contact 50 - 1000V AC Cordless Voltage Tester Pen
current price $22.24

1.5V Non-Contact 50 - 1000V AC Cordless Voltage Tester Pen

4.8 out of 5 stars
4.8 out of 5 Stars. 51 reviews

1Pc Nut Bolt Thread Gauge Checker Size and Measure Identifier $9.34

1Pc Nut Bolt Thread Gauge Checker Size and Measure Identifier
current price $9.34

1Pc Nut Bolt Thread Gauge Checker Size and Measure Identifier

Deal, 44 PCS Nut and Bolt Thread Checker Set, Inch & Metric Thread Gauge, SAE Standard Thread Size Checker, Bolt Nut Thread Identifier Gauge Kit with Storage Case $25.19 Was $29.99

Deal
44 PCS Nut and Bolt Thread Checker Set, Inch & Metric Thread Gauge, SAE Standard Thread Size Checker, Bolt Nut Thread Identifier Gauge Kit with Storage Case
current price Now $25.19, Was $29.99

44 PCS Nut and Bolt Thread Checker Set, Inch & Metric Thread Gauge, SAE Standard Thread Size Checker, Bolt Nut Thread Identifier Gauge Kit with Storage Case

4.8 out of 5 stars
4.8 out of 5 Stars. 5 reviews

Allosun Christmas Light Tester,Christmas Light Repair Tool, Christmas Light Bulb Tester GK13 $9.99

Allosun Christmas Light Tester,Christmas Light Repair Tool, Christmas Light Bulb Tester GK13
current price $9.99

Allosun Christmas Light Tester,Christmas Light Repair Tool, Christmas Light Bulb Tester GK13

4 out of 5 stars
4 out of 5 Stars. 45 reviews

GJX Battery Tester, Small Battery Testers Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries $7.32

GJX Battery Tester, Small Battery Testers Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries
current price $7.32

GJX Battery Tester, Small Battery Testers Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries

Thread Checker, Nut and Bolt Identifier Gauge, Standard and Metric Thread Size Tool, 26 Piece Set $19.99

Thread Checker, Nut and Bolt Identifier Gauge, Standard and Metric Thread Size Tool, 26 Piece Set
current price $19.99

Thread Checker, Nut and Bolt Identifier Gauge, Standard and Metric Thread Size Tool, 26 Piece Set

findmallThread Chaser Set, 18 Hole 3/32 to 1/2 inch, Nut and Bolt Thread Checker $11.17 Was $12.85

findmallThread Chaser Set, 18 Hole 3/32 to 1/2 inch, Nut and Bolt Thread Checker
current price Now $11.17, Was $12.85

findmallThread Chaser Set, 18 Hole 3/32 to 1/2 inch, Nut and Bolt Thread Checker

Computer PC Power Supply Tester, Power Supply Host Inspection Maintenance Tester Tool with LCD Display, 20/24 4/6/8 Pin Power Supply Tester for ATX/ITX/TFX/BTX Power Supplies $14.98

Computer PC Power Supply Tester, Power Supply Host Inspection Maintenance Tester Tool with LCD Display, 20/24 4/6/8 Pin Power Supply Tester for ATX/ITX/TFX/BTX Power Supplies
current price $14.98

Computer PC Power Supply Tester, Power Supply Host Inspection Maintenance Tester Tool with LCD Display, 20/24 4/6/8 Pin Power Supply Tester for ATX/ITX/TFX/BTX Power Supplies

Deal, AUTOOL BT360 Car Battery Tester, 8V-29V Digital Batteries Analyzer From $17.09

Deal
AUTOOL BT360 Car Battery Tester, 8V-29V Digital Batteries Analyzer
Available in additional 7 options
Options
From$1709

AUTOOL BT360 Car Battery Tester, 8V-29V Digital Batteries Analyzer

4.4 out of 5 stars
4.4 out of 5 Stars. 151 reviews

214-Piece Thread Checker and Drill Bit Gauge Kit, 37 SAE and 33 Metric Thread Gauges, 144 Drill Bit Gauges, Bolt Size Finder $99.98

214-Piece Thread Checker and Drill Bit Gauge Kit, 37 SAE and 33 Metric Thread Gauges, 144 Drill Bit Gauges, Bolt Size Finder
current price $99.98

214-Piece Thread Checker and Drill Bit Gauge Kit, 37 SAE and 33 Metric Thread Gauges, 144 Drill Bit Gauges, Bolt Size Finder

Handdo 44-pc Nut and Bolt Thread Checker Set - 23 Inch & 21 Metric Sizes Gauges $24.59

Handdo 44-pc Nut and Bolt Thread Checker Set - 23 Inch & 21 Metric Sizes Gauges
current price $24.59

Handdo 44-pc Nut and Bolt Thread Checker Set - 23 Inch & 21 Metric Sizes Gauges

5 out of 5 stars
5 out of 5 Stars. 7 reviews

Riousery Button Cell Battery Tester Portable Crisp Screen Display 1.5V 3V Small Battery Checker Meter Tool $12.55

Riousery Button Cell Battery Tester Portable Crisp Screen Display 1.5V 3V Small Battery Checker Meter Tool
current price $12.55

Riousery Button Cell Battery Tester Portable Crisp Screen Display 1.5V 3V Small Battery Checker Meter Tool

MaximalPower 5-in-1 Battery Meter, Intelligent Cell Meter Digital Battery Checker Battery Balancer for LiPo / LiFePO4 / Li-ion/NiCd/NiMH Battery Packs $18.95

MaximalPower 5-in-1 Battery Meter, Intelligent Cell Meter Digital Battery Checker Battery Balancer for LiPo / LiFePO4 / Li-ion/NiCd/NiMH Battery Packs
current price $18.95

MaximalPower 5-in-1 Battery Meter, Intelligent Cell Meter Digital Battery Checker Battery Balancer for LiPo / LiFePO4 / Li-ion/NiCd/NiMH Battery Packs

Klein Tools Receptacle Tester $14.06

Klein Tools Receptacle Tester
current price $14.06

Klein Tools Receptacle Tester

4.9 out of 5 stars
4.9 out of 5 Stars. 12 reviews

Ecohintz Battery Tester Universal Battery Capacity Checker – Aa/Aaa/C/D/9V/18650 Tester | Compact & Portable, Battery Tester for Household Batteries, Black

Ecohintz Battery Tester Universal Battery Capacity Checker – Aa/Aaa/C/D/9V/18650 Tester | Compact & Portable, Battery Tester for Household Batteries, Black

Ecohintz Battery Tester Universal Battery Capacity Checker – Aa/Aaa/C/D/9V/18650 Tester | Compact & Portable, Battery Tester for Household Batteries, Black

3.8 out of 5 stars
3.8 out of 5 Stars. 24 reviews

Klein Tools NCVT2P 12 - 1000V AC Dual Range Non-Contact Voltage Tester $28.97

Klein Tools NCVT2P 12 - 1000V AC Dual Range Non-Contact Voltage Tester
current price $28.97

Klein Tools NCVT2P 12 - 1000V AC Dual Range Non-Contact Voltage Tester

4.2 out of 5 stars
4.2 out of 5 Stars. 13 reviews

LABLT 3/32 to 1/2 Inch Nut and Bolt Thread Checker Bolt Size and Thread Gauge $14.96

LABLT 3/32 to 1/2 Inch Nut and Bolt Thread Checker Bolt Size and Thread Gauge
current price $14.96

LABLT 3/32 to 1/2 Inch Nut and Bolt Thread Checker Bolt Size and Thread Gauge

Klein Tools LCD Maintenance and Test Kit 1 pk $67.41

Klein Tools LCD Maintenance and Test Kit 1 pk
current price $67.41

Klein Tools LCD Maintenance and Test Kit 1 pk

3 out of 5 stars
3 out of 5 Stars. 2 reviews

Klein Tools Non-Contact Voltage Tester Pen With Laser Distance Meter, 12 To 1000V Ac $54.97

Klein Tools Non-Contact Voltage Tester Pen With Laser Distance Meter, 12 To 1000V Ac
current price $54.97

Klein Tools Non-Contact Voltage Tester Pen With Laser Distance Meter, 12 To 1000V Ac

4.4 out of 5 stars
4.4 out of 5 Stars. 7 reviews

GJX Universal Battery Capacity Voltage Meter 8-72V, Dual IC Monitor Gauge Indicator for Lead-Acid Lithium Ion, RV Marine Golf Cart Boat Motorcycle Tester

GJX Universal Battery Capacity Voltage Meter 8-72V, Dual IC Monitor Gauge Indicator for Lead-Acid Lithium Ion, RV Marine Golf Cart Boat Motorcycle Tester

GJX Universal Battery Capacity Voltage Meter 8-72V, Dual IC Monitor Gauge Indicator for Lead-Acid Lithium Ion, RV Marine Golf Cart Boat Motorcycle Tester

4 out of 5 stars
4 out of 5 Stars. 8 reviews

GJX Universal LCD Digital Battery Tester Checker AA, AAA, Button 9V 1.5V Cells $6.93

GJX Universal LCD Digital Battery Tester Checker AA, AAA, Button 9V 1.5V Cells
current price $6.93

GJX Universal LCD Digital Battery Tester Checker AA, AAA, Button 9V 1.5V Cells

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