Def Tester(12)
Uses item details. Price when purchased online
Best seller Innova 5210 OBD2 Scanner & Engine Code Reader, Battery Tester, Live Data, Oil Reset, Car Diagnostic Tool for Most Vehicles, Bluetooth Compatible with Free RS2 App $89.99

Sponsored
$8999
current price $89.99Innova 5210 OBD2 Scanner & Engine Code Reader, Battery Tester, Live Data, Oil Reset, Car Diagnostic Tool for Most Vehicles, Bluetooth Compatible with Free RS2 App
624.3 out of 5 Stars. 62 reviews
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Ancel Wireless Bluetooth OBD2 Scanner + Car Battery Tester 12V 100-2000CCA Code Reader Check Engine Light Full OBD2 Function Trip Computer Car Health Monitor & Real-Time Performance Monitor $89.99 Was $159.99

Sponsored
Now$8999
current price Now $89.99, Was $159.99$159.99
Ancel Wireless Bluetooth OBD2 Scanner + Car Battery Tester 12V 100-2000CCA Code Reader Check Engine Light Full OBD2 Function Trip Computer Car Health Monitor & Real-Time Performance Monitor
74.7 out of 5 Stars. 7 reviews
Autel AL529HD AutoLink Heavy Duty Vehicle Upgraded AL519/AL529 Compatible SAE-J1939/J1708 Code Reader and Emission Tester OBD2 Scanner Read/Erase DTCs Freeze Frame Data Live Data Multilingual menu $109.97

Sponsored
$10997
current price $109.97Autel AL529HD AutoLink Heavy Duty Vehicle Upgraded AL519/AL529 Compatible SAE-J1939/J1708 Code Reader and Emission Tester OBD2 Scanner Read/Erase DTCs Freeze Frame Data Live Data Multilingual menu
ANCEL S100 Automotive Smoke Machine with 12V Car Battery Tester,EVAP Smoke Leak Detector Leakage Locator Load Charging Cranking Tester Car Diagnostic Test Tool for Vehicle/Motorcycle/Boat/Light Truck $107.99

Sponsored
$10799
current price $107.99ANCEL S100 Automotive Smoke Machine with 12V Car Battery Tester,EVAP Smoke Leak Detector Leakage Locator Load Charging Cranking Tester Car Diagnostic Test Tool for Vehicle/Motorcycle/Boat/Light Truck
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Thexton Manufacturing TH109 Pocket Size DEF Tester $18.92

$1892
current price $18.92Thexton Manufacturing TH109 Pocket Size DEF Tester
B3C Fuel Solutions DEF Contamination Test Strips 100 Count, Diesel Exhaust Fluid Purity Tester for Trucks, Fleets, Heavy Equipment, Fast On-Site Results $60.98

$6098
current price $60.98B3C Fuel Solutions DEF Contamination Test Strips 100 Count, Diesel Exhaust Fluid Purity Tester for Trucks, Fleets, Heavy Equipment, Fast On-Site Results
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Autel AL539B OBD2 Scanner 3-in-1 Battery Tester Avometer Full OBDII Diagnosis and Circuit Starting & Charging Systems Test for 12 Volts Batteries $89.99 Was $105.79

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Now$8999
current price Now $89.99, Was $105.79$105.79
Autel AL539B OBD2 Scanner 3-in-1 Battery Tester Avometer Full OBDII Diagnosis and Circuit Starting & Charging Systems Test for 12 Volts Batteries
554.6 out of 5 Stars. 55 reviews
AUTOPHIX OM129 PRO OBD2 Scanner Battery Tester 2 in 1 Automotive Diagnostic Tool Engine Code Reader Full OBD2 Function Cranking Test Charging Test 12V Automotive Battery Tester EOBD OBD Auto Analyzer $69.99 Was $129.99

Sponsored
Now$6999
current price Now $69.99, Was $129.99$129.99
AUTOPHIX OM129 PRO OBD2 Scanner Battery Tester 2 in 1 Automotive Diagnostic Tool Engine Code Reader Full OBD2 Function Cranking Test Charging Test 12V Automotive Battery Tester EOBD OBD Auto Analyzer
TOPDON AL500B Battery Tester 2 in 1 Car Diagnostic Code Reader, OBD2 Scanner, 12V Battery Tests, 12V/24V Cranking & Charging TestsFull OBDII Diagnosis, $82.99

Sponsored
$8299
current price $82.99TOPDON AL500B Battery Tester 2 in 1 Car Diagnostic Code Reader, OBD2 Scanner, 12V Battery Tests, 12V/24V Cranking & Charging TestsFull OBDII Diagnosis,
35 out of 5 Stars. 3 reviews
ANCEL AD410 Pro Automotive Diagnostic Tool with OBDII Functions, Battery Tester $79.99 Was $158.99

Sponsored
Now$7999
current price Now $79.99, Was $158.99$158.99
ANCEL AD410 Pro Automotive Diagnostic Tool with OBDII Functions, Battery Tester
35 out of 5 Stars. 3 reviews
AUTOOL AS505 Digital Automotive Transmission Fluid Tester Oil Transparency Analyzer W/ High Precision Probe 2.8-inch Backlit Screen for Car Gasoline Diesel Engine From $19.99

Sponsored
From$1999
AUTOOL AS505 Digital Automotive Transmission Fluid Tester Oil Transparency Analyzer W/ High Precision Probe 2.8-inch Backlit Screen for Car Gasoline Diesel Engine
64.5 out of 5 Stars. 6 reviews
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Performance Tool W181 Brake Fluid Moisture Tester - 5 LED Readout, Calibrated for DOT 4, Portable with AAA Battery Included, Not for use on DOT 5 $27.78 $185.20/lb

Sponsored
$2778
current price $27.78$185.20/lb
Performance Tool W181 Brake Fluid Moisture Tester - 5 LED Readout, Calibrated for DOT 4, Portable with AAA Battery Included, Not for use on DOT 5
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Other options to consider(79)
TEST-TRACE-TONE KIT INCLUDES 33-856 62-164 CASE & ADAPT $99.99 Was $135.74

Now$9999
current price Now $99.99, Was $135.74$135.74
TEST-TRACE-TONE KIT INCLUDES 33-856 62-164 CASE & ADAPT
25 out of 5 Stars. 2 reviews
Dorman 86593 Electrical Circuit Testing Tool Green $6.12

$612
current price $6.12Dorman 86593 Electrical Circuit Testing Tool Green
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Best seller Prestone Antifreeze & Coolant Tester $3.84 Was $5.99

Now$384
current price Now $3.84, Was $5.99$5.99
Prestone Antifreeze & Coolant Tester
2964.6 out of 5 Stars. 296 reviews
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Openport 2.0 Code Reader Software for Car Diagnostic via USB, Chip Tuning, Flashing - OBD2 Cable Automotive Testing Tool Device to Install, Vehicle Control Engine Check Tester, No Internet Connection $30.99

$3099
current price $30.99Openport 2.0 Code Reader Software for Car Diagnostic via USB, Chip Tuning, Flashing - OBD2 Cable Automotive Testing Tool Device to Install, Vehicle Control Engine Check Tester, No Internet Connection
Hemoton Brake Fluid Test Def Extractor Transmission Car Black $7.18 Was $10.49

Now$718
current price Now $7.18, Was $10.49$10.49
Hemoton Brake Fluid Test Def Extractor Transmission Car Black
LiquiDynamics 21893 Diesel Exhaust Fluid Conductivity Meter - Model No. 195601 $260.01

$26001
current price $260.01LiquiDynamics 21893 Diesel Exhaust Fluid Conductivity Meter - Model No. 195601
AUTOOL AS501 Digital Brake Fluid Tester, DOT3 DOT4 DOT5.1 ENV-4 ENV-6 Fluid Tester, Car Oil Moisture Analyzer High Precision HD Backlit Display From $19.99

5 options
Available in additional 5 optionsFrom$1999
AUTOOL AS501 Digital Brake Fluid Tester, DOT3 DOT4 DOT5.1 ENV-4 ENV-6 Fluid Tester, Car Oil Moisture Analyzer High Precision HD Backlit Display
64.5 out of 5 Stars. 6 reviews
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AUTOOL SDT60 Car Smoke Leak Detector, EVAP Smoke Machine, Automotive Pipe Leakage Locator, Fuel Pressure Tester Built-In Air Pump & Pressure Gauge for All Vehicles System Diagnostic Analyze From $50.99

6 options
Available in additional 6 optionsFrom$5099
AUTOOL SDT60 Car Smoke Leak Detector, EVAP Smoke Machine, Automotive Pipe Leakage Locator, Fuel Pressure Tester Built-In Air Pump & Pressure Gauge for All Vehicles System Diagnostic Analyze
734.4 out of 5 Stars. 73 reviews
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Elitech Infrared Refrigerant Leak Detector HVAC Halogen Tester Gas Selectable $245.00

$24500
current price $245.00Elitech Infrared Refrigerant Leak Detector HVAC Halogen Tester Gas Selectable
Compression Tester Automotive 46Pcs Petrol & Diesel Compression Tester Kit for HDI/TDCi/Pumpe Duse Engine Cylinder Leak Down Tester Kit with Compression Gauge,Dual-Meter Leak Detector, Adapters $182.99

$18299
current price $182.99Compression Tester Automotive 46Pcs Petrol & Diesel Compression Tester Kit for HDI/TDCi/Pumpe Duse Engine Cylinder Leak Down Tester Kit with Compression Gauge,Dual-Meter Leak Detector, Adapters
Pen Type Digital Multimeter 4000 Counts AC/DC Voltage Ohm Diode Tester Auto Range Multi Tester $36.93

$3693
current price $36.93Pen Type Digital Multimeter 4000 Counts AC/DC Voltage Ohm Diode Tester Auto Range Multi Tester
Best seller CNBJ-611 Automotive Fuse Current Tester Car Leakage Analyzer Fault Tester Automotive Fuse Current Testing Tool $7.69 Was $13.78

Now$769
current price Now $7.69, Was $13.78$13.78
CNBJ-611 Automotive Fuse Current Tester Car Leakage Analyzer Fault Tester Automotive Fuse Current Testing Tool
234.7 out of 5 Stars. 23 reviews
Voltage Tester LCD Display Voltage Detector Non Contact AC Voltage Sensor Pen Live Wire Check $71.19

$7119
current price $71.19Voltage Tester LCD Display Voltage Detector Non Contact AC Voltage Sensor Pen Live Wire Check
46-Piece Diesel & Petrol Engine Compression and Leak Down Tester Kit | Dual Gauge Diagnostic Tool for HDi, TDCi, Pumpe Duse Engines | Automotive Cylinder Leak Maintenance Test $172.99

$17299
current price $172.9946-Piece Diesel & Petrol Engine Compression and Leak Down Tester Kit | Dual Gauge Diagnostic Tool for HDi, TDCi, Pumpe Duse Engines | Automotive Cylinder Leak Maintenance Test
Reduced price AUTOOL BT210 Automotive Power Circuit Probe Kit,12V 24V DC Electrical System Tool, Digital Voltage Short Finder, Car Fuse Relay Tester,9-30V Circuit Tester, LED From $15.19

6 options
Available in additional 6 optionsFrom$1519
AUTOOL BT210 Automotive Power Circuit Probe Kit,12V 24V DC Electrical System Tool, Digital Voltage Short Finder, Car Fuse Relay Tester,9-30V Circuit Tester, LED
1664.1 out of 5 Stars. 166 reviews
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Auto Meter Battery/Electrical System Tester - SB-5/2 $768.60

$76860
current price $768.60Auto Meter Battery/Electrical System Tester - SB-5/2
15 out of 5 Stars. 1 reviews
[Second Hand] TS710 Heavy Duty Truck Diesel Diagnostic Scanner DPF Regen Actuation Test + OM117 Check Engine Code Reader $472.00
![[Second Hand] TS710 Heavy Duty Truck Diesel Diagnostic Scanner DPF Regen Actuation Test + OM117 Check Engine Code Reader](https://i5.walmartimages.com/seo/Second-Hand-TS710-Heavy-Duty-Truck-Diesel-Diagnostic-Scanner-DPF-Regen-Actuation-Test-OM117-Check-Engine-Code-Reader_f21efd4e-0f4a-4faf-9a3d-7547914e9952.a3004c23f02dc9c2337cf317e0c75138.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$47200
current price $472.00[Second Hand] TS710 Heavy Duty Truck Diesel Diagnostic Scanner DPF Regen Actuation Test + OM117 Check Engine Code Reader
Rhino Tuff Tanks RTT-7046 DEF K24 IN-LINE METER KIT CONNECTED TO NOZZLE $795.63

$79563
current price $795.63Rhino Tuff Tanks RTT-7046 DEF K24 IN-LINE METER KIT CONNECTED TO NOZZLE
STANLEY - FatMax VDE Insulated Voltage Tester $26.95

$2695
current price $26.95STANLEY - FatMax VDE Insulated Voltage Tester
Pen Type Auto Range Voltage Tester LCD Professional AC/DC Voltage Electronic Diode $47.40

$4740
current price $47.40Pen Type Auto Range Voltage Tester LCD Professional AC/DC Voltage Electronic Diode
Clearance XiYing 2-In-1 Digital Voltage Tester Pen, Ac Voltage Detection, Live Wire Finder, Non-Contact Ef Sensor, Continuity Test, with Interchangeable Bits, for Electricians and Diy, 1 Count From $16.04
From$1604
XiYing 2-In-1 Digital Voltage Tester Pen, Ac Voltage Detection, Live Wire Finder, Non-Contact Ef Sensor, Continuity Test, with Interchangeable Bits, for Electricians and Diy, 1 Count
AUTOOL SDT50 Smoke Leak Detecter, Car EVAP Smoke Machine, Automotive Oil Pipe Leakage Analyze Locator, Fuel Pressure Tester Built-In Air Pump for Vehicle Air Tightness Diagnosis $49.99

$4999
current price $49.99AUTOOL SDT50 Smoke Leak Detecter, Car EVAP Smoke Machine, Automotive Oil Pipe Leakage Analyze Locator, Fuel Pressure Tester Built-In Air Pump for Vehicle Air Tightness Diagnosis
84.1 out of 5 Stars. 8 reviews
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Performance Tool W80579 Flex Drive Compression Tester $18.00 $22.50/lb

$1800
current price $18.00$22.50/lb
Performance Tool W80579 Flex Drive Compression Tester
25 out of 5 Stars. 2 reviews
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Lang Tools (Star Products) TU-32-21 - Fuel System Restriction Test Gauge - Compuchek $164.63 $164.63/count

$16463
current price $164.63$164.63/count
Lang Tools (Star Products) TU-32-21 - Fuel System Restriction Test Gauge - Compuchek
High Precise Portability Transistor Tester JFET,Meter Tester For Resistors Capacitors Diode With LCD Display $32.53

$3253
current price $32.53High Precise Portability Transistor Tester JFET,Meter Tester For Resistors Capacitors Diode With LCD Display
Best seller ZFITEI Strong and Durable Compression Tester Cylinder Pressure Gauge Kit, Red $15.99

$1599
current price $15.99ZFITEI Strong and Durable Compression Tester Cylinder Pressure Gauge Kit, Red
504.3 out of 5 Stars. 50 reviews
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AutoLine Pro HyperSmoke™ Automotive Smoke Machine EVAP Vacuum Leak Tester – Adjustable Pressure – OEM Approved Smoke Fluid – Built-in Air Compressor Motor - Includes Smoke Fluid x2 From $52.99

4 options
Available in additional 4 optionsFrom$5299
AutoLine Pro HyperSmoke™ Automotive Smoke Machine EVAP Vacuum Leak Tester – Adjustable Pressure – OEM Approved Smoke Fluid – Built-in Air Compressor Motor - Includes Smoke Fluid x2
514.4 out of 5 Stars. 51 reviews
OBD2 Scanner with Upgrade Battery Tester - Diagnostic Tool for Cars That Check Engine Light & Emissions Readiness Read and Clears Vehicle Error Codes for All OBD II Protocol Vehicles Since 1996 $19.99

$1999
current price $19.99OBD2 Scanner with Upgrade Battery Tester - Diagnostic Tool for Cars That Check Engine Light & Emissions Readiness Read and Clears Vehicle Error Codes for All OBD II Protocol Vehicles Since 1996
1864.5 out of 5 Stars. 186 reviews
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V100 OBD2 Diagnostic Diagnostic Tool Tool, Code Reader, Engine Light Diagnostic Tool, Battery Voltage Tester, for OBD2 Cars & Trucks Since 1996 $9.90

$990
current price $9.90V100 OBD2 Diagnostic Diagnostic Tool Tool, Code Reader, Engine Light Diagnostic Tool, Battery Voltage Tester, for OBD2 Cars & Trucks Since 1996
15 out of 5 Stars. 1 reviews
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[Second Hand] ANCEL HD120 Heavy Duty Truck Scanner All System DPF Regen Diesel Diagnostic Tool + BM310 Battery Tester $177.00
![[Second Hand] ANCEL HD120 Heavy Duty Truck Scanner All System DPF Regen Diesel Diagnostic Tool + BM310 Battery Tester](https://i5.walmartimages.com/seo/Second-Hand-ANCEL-HD120-Heavy-Duty-Truck-Scanner-All-System-DPF-Regen-Diesel-Diagnostic-Tool-BM310-Battery-Tester_8e9070ea-0207-482d-9989-e40576f0f438.2bc192e5b5bdef39574677d7cd72cd7d.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$17700
current price $177.00[Second Hand] ANCEL HD120 Heavy Duty Truck Scanner All System DPF Regen Diesel Diagnostic Tool + BM310 Battery Tester
AUTOOL BT360 Automotive Battery Tester, 8V-29V Digital Batteries Analyzer, 30-2000CCA Charging & Cranking Detector for Car Motorcycle Truck and More 4-300 AH From $15.99

7 options
Available in additional 7 optionsFrom$1599
AUTOOL BT360 Automotive Battery Tester, 8V-29V Digital Batteries Analyzer, 30-2000CCA Charging & Cranking Detector for Car Motorcycle Truck and More 4-300 AH
1214.4 out of 5 Stars. 121 reviews
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ANCEL EVAP Smoke Machine Car Leak Dector Vacuum Pipe Leak Diagnostic, Car Fuel Pressure Gauge Tester, Smoke Machine for Automotive Truck $119.99

$11999
current price $119.99ANCEL EVAP Smoke Machine Car Leak Dector Vacuum Pipe Leak Diagnostic, Car Fuel Pressure Gauge Tester, Smoke Machine for Automotive Truck
35 out of 5 Stars. 3 reviews
Non-Contact AC Voltage Tester Digital Pen LCD Display Wire Breakpoint Finder Sound and Light Alarm $35.33

$3533
current price $35.33Non-Contact AC Voltage Tester Digital Pen LCD Display Wire Breakpoint Finder Sound and Light Alarm
2026 Upgrade Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker (1pcs)
2026 Upgrade Automotive Circuit Fault Probe Tester, Portable High-Precision 20a 48v Car Circuit Probe Tester with Led Display & Front Lighting, Water Proof Car Relay Fuse Blade Checker (1pcs)
VD03 Digital Control Non Contact Voltage Tester Pen Detect LED Light Audible Alarm $25.39

$2539
current price $25.39VD03 Digital Control Non Contact Voltage Tester Pen Detect LED Light Audible Alarm
AUTOOL PT610 Digital Cylinder Compression Pressure Tester, 0-426PSI 0~29bar Auto Petrol Engine Gauge Tool Kit with Adapters & Hoses From $80.99

6 options
Available in additional 6 optionsFrom$8099
AUTOOL PT610 Digital Cylinder Compression Pressure Tester, 0-426PSI 0~29bar Auto Petrol Engine Gauge Tool Kit with Adapters & Hoses
15 out of 5 Stars. 1 reviews
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AUTOOL SDT60 Smoke Leak Detecter Car EVAP Smoke Machine Automotive Oil Pipe Leakage Analyze Locator Fuel Pressure Tester Built-In Air Pump for All Vehicle Air Tightness Diagnostic $61.99

$6199
current price $61.99AUTOOL SDT60 Smoke Leak Detecter Car EVAP Smoke Machine Automotive Oil Pipe Leakage Analyze Locator Fuel Pressure Tester Built-In Air Pump for All Vehicle Air Tightness Diagnostic
85 out of 5 Stars. 8 reviews
VEVOR Diesel Engine Compression Tester, 18 pcs Cylinder Pressure Test Tool Kit, with 0-1000 psi Gauge and Adapters, Diesel Injector Tester Check Cylinders in Diesel Trucks, Tractors, Equipment $35.60 $35.60/ca

$3560
current price $35.60$35.60/ca
VEVOR Diesel Engine Compression Tester, 18 pcs Cylinder Pressure Test Tool Kit, with 0-1000 psi Gauge and Adapters, Diesel Injector Tester Check Cylinders in Diesel Trucks, Tractors, Equipment
44.8 out of 5 Stars. 4 reviews
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