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Home ImprovementIndustrial & ScientificAuto & TiresBeautyCell PhonesHousehold EssentialsVideo GamesParty & OccasionsJewelryBooksElectronicsHomeMovies & TV ShowsMusicSports & OutdoorsToysPhoto CenterBabyPatio & GardenClothingPetsFoodHealth and MedicineShop with PurposeArts Crafts & SewingMusical InstrumentsShop by BrandServicesPersonal CareOffice SuppliesSubscriptionsCollectiblesPremium BeautyFeature
Clearance in Testers(395)
Uses item details. Price when purchased online
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

Now$1099
current price Now $10.99, Was $15.99$15.99
D-FantiX Battery Tester, Universal Battery Checker for AAA AA C D 9V 1.5V Button Cell Household Batteries Model BT-168
7974.5 out of 5 Stars. 797 reviews
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Clearance Soil pH Meter, 3-in-1 Soil Moisture/Light/pH Tester Gardening Tool Kits for Plant Care, Great for Garden, Lawn, Farm, Indoor & Outdoor Use $11.99 Was $17.99

Now$1199
current price Now $11.99, Was $17.99$17.99
Soil pH Meter, 3-in-1 Soil Moisture/Light/pH Tester Gardening Tool Kits for Plant Care, Great for Garden, Lawn, Farm, Indoor & Outdoor Use
3654.1 out of 5 Stars. 365 reviews
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Best seller TESMEN TM-510 Digital Multimeter, Auto-Ranging Electrical Tester with 4000 Counts, Measures Voltage, Current, Resistance for Home, Car, DIY $16.99 Was $18.99

Now$1699
current price Now $16.99, Was $18.99$18.99
TESMEN TM-510 Digital Multimeter, Auto-Ranging Electrical Tester with 4000 Counts, Measures Voltage, Current, Resistance for Home, Car, DIY
2324.7 out of 5 Stars. 232 reviews
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Flash Deal Soil Tester,3-in-1 Soil Tester Kits, Soil Moisture/Fertility/pH Tester for Plant Care,Gardening Tool Kit for Garden,Lawn,Farm,Plants,Indoor & Outdoor $10.00 Was $17.99

Now$1000
current price Now $10.00, Was $17.99$17.99
Soil Tester,3-in-1 Soil Tester Kits, Soil Moisture/Fertility/pH Tester for Plant Care,Gardening Tool Kit for Garden,Lawn,Farm,Plants,Indoor & Outdoor
1154.2 out of 5 Stars. 115 reviews
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Best seller Performance Tool W2974, Digital Multimeter Tester Electric Power Tester From $8.61

4 options
Available in additional 4 optionsFrom$861
Performance Tool W2974, Digital Multimeter Tester Electric Power Tester
544.6 out of 5 Stars. 54 reviews
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2 Pack Upgraded Watt Meter Power Meter Plug Home Electricity Usage Monitor, Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Meter Tester with Backlight, 7 Modes Display From $10.87
From$1087
2 Pack Upgraded Watt Meter Power Meter Plug Home Electricity Usage Monitor, Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Meter Tester with Backlight, 7 Modes Display
324.8 out of 5 Stars. 32 reviews
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10 in 1 Digital Water Tester Meter, PH/TDS/EC/Salinity/SG/ORP/Hydrogen-rich/Resistivity/Temp/Nutrient Solution, Water Tester Pen for Drinking Water Hydroponics Plant Fish Tank, Pool Salt Tester $29.99 Was $39.99

Now$2999
current price Now $29.99, Was $39.99$39.99
10 in 1 Digital Water Tester Meter, PH/TDS/EC/Salinity/SG/ORP/Hydrogen-rich/Resistivity/Temp/Nutrient Solution, Water Tester Pen for Drinking Water Hydroponics Plant Fish Tank, Pool Salt Tester
463.5 out of 5 Stars. 46 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
254.9 out of 5 Stars. 25 reviews
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Best seller TESMEN TN-213 Non-Contact Voltage Tester Pen, Electrical Tester with Dual Sensitivity Modes, LED Indicator, Waterproof, Pocket-Sized $14.99 Was $19.99

Now$1499
current price Now $14.99, Was $19.99$19.99
TESMEN TN-213 Non-Contact Voltage Tester Pen, Electrical Tester with Dual Sensitivity Modes, LED Indicator, Waterproof, Pocket-Sized
594.6 out of 5 Stars. 59 reviews
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Clearance TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water $10.99 Was $19.99

Now$1099
current price Now $10.99, Was $19.99$19.99
TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water
1064.1 out of 5 Stars. 106 reviews
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Flash Deal HBN Watt Meter Plug, Plug-in Socket Power Meter Electricity Usage Monitor Consumption Home Electrical Energy Monitor, Voltage Amps Wattage Electricity Usage Tester, 9 Display Modes $9.29 Was $19.99

Now$929
current price Now $9.29, Was $19.99$19.99
HBN Watt Meter Plug, Plug-in Socket Power Meter Electricity Usage Monitor Consumption Home Electrical Energy Monitor, Voltage Amps Wattage Electricity Usage Tester, 9 Display Modes
1014.7 out of 5 Stars. 101 reviews
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Neoteck Voltage Tester/Non Contact Voltage Tester 12-1000V/48-1000V Adjustable Sensitivity AC Voltage Detector Tester Pen Live/Null Wire Tester with LCD Display Buzzer Alarm Wire Breakpoint Finder From $9.99
From$999
Neoteck Voltage Tester/Non Contact Voltage Tester 12-1000V/48-1000V Adjustable Sensitivity AC Voltage Detector Tester Pen Live/Null Wire Tester with LCD Display Buzzer Alarm Wire Breakpoint Finder
55 out of 5 Stars. 5 reviews
Slaprin 6V-12V-24V DC Car Circuit Tester Light, Professional Auto Voltage Continuity Test, Automotive Electrical Volt Test Light/Long Probe for Wire/Fuse/Socket and More - Red $7.39 Was $8.50

Now$739
current price Now $7.39, Was $8.50$8.50
Slaprin 6V-12V-24V DC Car Circuit Tester Light, Professional Auto Voltage Continuity Test, Automotive Electrical Volt Test Light/Long Probe for Wire/Fuse/Socket and More - Red
414.9 out of 5 Stars. 41 reviews
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Digital PH Meter, 5 in 1 Pool Salt Tester for Water PH / TDS / EC / Salinity / Temp Meter with ATC, for Household Drinking Water Hot Tub Spas Fish Tank $23.99 Was $29.99

Now$2399
current price Now $23.99, Was $29.99$29.99
Digital PH Meter, 5 in 1 Pool Salt Tester for Water PH / TDS / EC / Salinity / Temp Meter with ATC, for Household Drinking Water Hot Tub Spas Fish Tank
373.5 out of 5 Stars. 37 reviews
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NOYAFA NF-827 Circuit Breaker Finder & Locator with GFCI Outlet Tester, Circuit Breaker Tester Tool, NCV Voltage Detector (90-120V AC) $34.99 Was $43.99

Now$3499
current price Now $34.99, Was $43.99$43.99
NOYAFA NF-827 Circuit Breaker Finder & Locator with GFCI Outlet Tester, Circuit Breaker Tester Tool, NCV Voltage Detector (90-120V AC)
464.4 out of 5 Stars. 46 reviews
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True RMS 6000-Count Digital Voltmeter,USB Rechargeable FS899L Multimeter,Large Color Screen & Backlight,Smart Automotive Electrical Non Contact Voltage Tester $23.04 Was $28.80

Now$2304
current price Now $23.04, Was $28.80$28.80
True RMS 6000-Count Digital Voltmeter,USB Rechargeable FS899L Multimeter,Large Color Screen & Backlight,Smart Automotive Electrical Non Contact Voltage Tester
15 out of 5 Stars. 1 reviews
TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools Was $9.20

TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools
264.5 out of 5 Stars. 26 reviews
Power Circuit Probe Tester, 6V/12V/24V DC Circuit Tester Automotive, Multifunctional Car Electric Circuit Tester Power Fuse & Voltage Tester Light, Short Circuit Breake Finder Electrical Tools $17.52 Was $21.64

Now$1752
current price Now $17.52, Was $21.64$21.64
Power Circuit Probe Tester, 6V/12V/24V DC Circuit Tester Automotive, Multifunctional Car Electric Circuit Tester Power Fuse & Voltage Tester Light, Short Circuit Breake Finder Electrical Tools
25 out of 5 Stars. 2 reviews
MOTOPOWER 12V Car Battery Tester Automotive 100-2000 CCA Battery Load Tester Auto Cranking and Charging System Test Scan Tool Digital Battery Alternator Analyzer Was $34.65
MOTOPOWER 12V Car Battery Tester Automotive 100-2000 CCA Battery Load Tester Auto Cranking and Charging System Test Scan Tool Digital Battery Alternator Analyzer
394.6 out of 5 Stars. 39 reviews
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Neoteck 6000 Counts Digital Multimeter with NCV and TRMS Auto Range Multimeter for AC/DC Voltage&Current,Resistance,Capacitance,Frequency,Temperature,Duty Ratio,Continuity Voltmeter for Car Circuit Was $29.99

Neoteck 6000 Counts Digital Multimeter with NCV and TRMS Auto Range Multimeter for AC/DC Voltage&Current,Resistance,Capacitance,Frequency,Temperature,Duty Ratio,Continuity Voltmeter for Car Circuit
74.7 out of 5 Stars. 7 reviews
PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool $27.99 Was $39.99

Now$2799
current price Now $27.99, Was $39.99$39.99
PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool
314.2 out of 5 Stars. 31 reviews
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Asunby 3-in-1 Water Quality Tester TDS Meter, EC & Temperature Monitor | 0-9990ppm Accuracy | for Drinking Water, Aquariums, Pools & RO Systems $10.79 Was $11.99

Now$1079
current price Now $10.79, Was $11.99$11.99
Asunby 3-in-1 Water Quality Tester TDS Meter, EC & Temperature Monitor | 0-9990ppm Accuracy | for Drinking Water, Aquariums, Pools & RO Systems
84.3 out of 5 Stars. 8 reviews
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AstroAI CM2K0R 600V, 400A Red LCD Digital Clamp Current Tester $21.99 Was $24.99

Now$2199
current price Now $21.99, Was $24.99$24.99
AstroAI CM2K0R 600V, 400A Red LCD Digital Clamp Current Tester
224.8 out of 5 Stars. 22 reviews
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VEVOR Digital Multimeter,6000-Count TRMS DC/AC Voltmeter Current Tester,Professional NCV Multimeter for Current Voltage Resistance Capacitance Duty-Cycle Tempetature Diodes Continuity Live Wire Test $28.90 Was $32.99

Now$2890
current price Now $28.90, Was $32.99$32.99
VEVOR Digital Multimeter,6000-Count TRMS DC/AC Voltmeter Current Tester,Professional NCV Multimeter for Current Voltage Resistance Capacitance Duty-Cycle Tempetature Diodes Continuity Live Wire Test
KAIWEETS Circuit Breaker Finder with LCD Display, GFCI Outlet Tester, Electrical Circuit Tracer Tool with NCV Test & Flashlight, Includes Carrying Case and Adapters- KT301P $77.19 Was $85.78

Now$7719
current price Now $77.19, Was $85.78$85.78
KAIWEETS Circuit Breaker Finder with LCD Display, GFCI Outlet Tester, Electrical Circuit Tracer Tool with NCV Test & Flashlight, Includes Carrying Case and Adapters- KT301P
Multimeter, AC/DC Volt 1000V Voltmeter Amp Volt Ohm Voltage Tester Meter with Test Leads and Battery Included $6.25 Was $12.59

Now$625
current price Now $6.25, Was $12.59$12.59
Multimeter, AC/DC Volt 1000V Voltmeter Amp Volt Ohm Voltage Tester Meter with Test Leads and Battery Included
33.7 out of 5 Stars. 3 reviews
Gaiseeis Digital Battery Tester For AAA AA C D 9V 1.5V, Household Battery Checker Tester For Small Batteries Button Cell (Model: BT-168D) multicolor

Gaiseeis Digital Battery Tester For AAA AA C D 9V 1.5V, Household Battery Checker Tester For Small Batteries Button Cell (Model: BT-168D) multicolor
123.9 out of 5 Stars. 12 reviews
KAIWEETS 2-in-1 Voltage Tester Screwdriver, 3–500V AC Contact Voltage Measurement & Non-Contact Detector Pen, Phillips Head, LCD Display, Live Wire Finder, Continuity Test for Outlet & Circuit, KTS01 Was $20.78

2 options
Available in additional 2 optionsKAIWEETS 2-in-1 Voltage Tester Screwdriver, 3–500V AC Contact Voltage Measurement & Non-Contact Detector Pen, Phillips Head, LCD Display, Live Wire Finder, Continuity Test for Outlet & Circuit, KTS01
USB Tester, Digital Multimeter Dual USB Output Ports Color LED Display, Capacity Voltage Current Power Voltmeter Ammeter for Laptop Power Bank Phone Solar Panel E8Y5 $5.09 Was $7.36

Now$509
current price Now $5.09, Was $7.36$7.36
USB Tester, Digital Multimeter Dual USB Output Ports Color LED Display, Capacity Voltage Current Power Voltmeter Ammeter for Laptop Power Bank Phone Solar Panel E8Y5
15 out of 5 Stars. 1 reviews
Digital Clamp Meter Multimeter, 4000 Counts AC/DC Voltage & Current Tester with NCV, Live Wire Detection, LED Flashlight for Home & Automotive $21.99 Was $24.99

Now$2199
current price Now $21.99, Was $24.99$24.99
Digital Clamp Meter Multimeter, 4000 Counts AC/DC Voltage & Current Tester with NCV, Live Wire Detection, LED Flashlight for Home & Automotive
25 out of 5 Stars. 2 reviews
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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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ANCEL PB50 New Power Circuit Probe Tester, 12V 24V Automotive Circuit Tester, Electrical Diagnistic Tool From $49.99

3 options
Available in additional 3 optionsFrom$4999
ANCEL PB50 New Power Circuit Probe Tester, 12V 24V Automotive Circuit Tester, Electrical Diagnistic Tool
274.5 out of 5 Stars. 27 reviews
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48V 20A Car Circuit Tester with Blue Backlight LCD & Front Light for Automotive and Truck Fuse Current Testing, Car Relay Tester, Relay Tester Kit $19.99 Was $23.99

Now$1999
current price Now $19.99, Was $23.99$23.99
48V 20A Car Circuit Tester with Blue Backlight LCD & Front Light for Automotive and Truck Fuse Current Testing, Car Relay Tester, Relay Tester Kit
Plertrvy Clearance Button Checker Indicator Tester 9V Cell C/D Aaa Aa Battery Other Bt-168D Battery Capacity Tester(Black@0723) $2.15 Was $4.69

Now$215
current price Now $2.15, Was $4.69$4.69
Plertrvy Clearance Button Checker Indicator Tester 9V Cell C/D Aaa Aa Battery Other Bt-168D Battery Capacity Tester(Black@0723)
AC Current Voltage Amperage Power Energy Panel Meter LCD Digital Display Ammeter Voltmeter Multimeter with Split Core Current Transformer CT AC 80-260V 100A Multi-Function Power Monitor Was $25.98

AC Current Voltage Amperage Power Energy Panel Meter LCD Digital Display Ammeter Voltmeter Multimeter with Split Core Current Transformer CT AC 80-260V 100A Multi-Function Power Monitor
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 $15.99 Was $17.99

Now$1599
current price Now $15.99, Was $17.99$17.99
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
15 out of 5 Stars. 1 reviews
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USB Power Meter,USB Current Meter,3-9V 0-5A Voltage Tester Multimeter,LCD Digital Multimeter Current Tester Voltage Detector, USB Tester DC LED Display N4H6 $5.09 Was $5.99

Now$509
current price Now $5.09, Was $5.99$5.99
USB Power Meter,USB Current Meter,3-9V 0-5A Voltage Tester Multimeter,LCD Digital Multimeter Current Tester Voltage Detector, USB Tester DC LED Display N4H6
15 out of 5 Stars. 1 reviews
DT830B Digital Multimeter, Portable LCD Voltmeter Ohmmeter Tester, Auto Range, AC/DC Voltage, Current, Resistance, Diode, Transistor, Battery Test, for Electrician & Household Use $5.61 Was $6.46

Now$561
current price Now $5.61, Was $6.46$6.46
DT830B Digital Multimeter, Portable LCD Voltmeter Ohmmeter Tester, Auto Range, AC/DC Voltage, Current, Resistance, Diode, Transistor, Battery Test, for Electrician & Household Use
15 out of 5 Stars. 1 reviews
Tm-510 Digital Multimeter, Volt Meter Tm-510 Digital Multimeter,4000 Counts, Automatic Digital Multimeter, Smart Digital Multimeter, Multimeter Tester, Electrical Circuit Tester Tools $12.39 Was $14.39

Now$1239
current price Now $12.39, Was $14.39$14.39
Tm-510 Digital Multimeter, Volt Meter Tm-510 Digital Multimeter,4000 Counts, Automatic Digital Multimeter, Smart Digital Multimeter, Multimeter Tester, Electrical Circuit Tester Tools
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