Hard to Wait

Harbor Freight prices › Departments › Automotive

Diagnostic Testing Scanning

Today's Harbor Freight price and a Buy, Wait or Fair call for every one of the Automotive Diagnostic Testing Scanning items Hard to Wait tracks: 61 items, each with its own daily price history and coupons. 2 say Buy today; they come first in each group.

Battery Testing

  1. CEN-TECH100 Amp, 6/12V Battery Load Tester item 61747 hasn't moved in months $19.99today Steady
  2. VIKING1000 Amp DC, 6/12/24V Carbon Pile Battery and System Load Tester item 58933 hasn't moved in months $199.99today Steady
  3. CEN-TECH12V Alternator/Battery Checker item 59376 hasn't moved in months $6.99today Steady
  4. VIKING12V Digital Battery and System Tester item 58759Members pay less not a steal, not a rip-off $39.99today Fair
  5. VIKING135 Amp, 6/12V Battery and System Load Tester item 58944 hasn't moved in months $39.99today Steady
  6. VIKING6/12/24V Digital Battery and System Tester with Printer item 58792 hasn't moved in months $129.99today Steady

Code Readers Scanners

  1. ICONProfessional Tire Pressure Monitoring System (TPMS) Tool Kit item 59482 about as low as it goes $649.99today Buy
  2. MADDOXMRBT Smart Mobile Device OBDII Code Reader item 70894Coupon today about as low as it goes, with a coupon $59.99shelf price Buy
  3. ZURICHHeavy Duty Truck Code Reader with DPF Regen item 59435 not a steal, not a rip-off $389.99today Fair
  4. MADDOXMR10 2.8 in. Screen OBDII Code Reader item 70834Members pay less not a steal, not a rip-off $99.99today Fair
  5. MADDOXMR14 4.3 in. Screen OBDII Code Reader item 70837 hasn't moved in months $199.99today Steady
  6. MADDOXMR16 Advanced 4.3 in. Screen OBDII Code Reader item 70836 it gets cheaper: see when, free $259.99today Wait
  7. MADDOXMR5 1.8 in. Screen OBDII Code Reader item 70838 not a steal, not a rip-off $44.99today Fair
  8. CEN-TECHOBDII Code Reader item 64981 hasn't moved in months $39.99today Steady
  9. ICONT10 Professional Comprehensive Diagnostic Scanner item 59831 hasn't moved in months $1,699.99today Steady
  10. ICONT7 Professional Wired Diagnostic Scanner item 59582, in-store only not a steal, not a rip-off $399.99today Fair
  11. ICONT8 Professional Intelligent Diagnostic Scanner item 57740Members pay less not a steal, not a rip-off $899.99today Fair

Compression Pressure Testers

  1. MADDOXBasic Fuel Injection Service Kit item 64939, in-store only hasn't moved in months $43.99today Steady
  2. PITTSBURGHCompression Test Kit, 8-Piece item 62638, in-store only hasn't moved in months $34.99today Steady
  3. ICONCooling System Pressure Test Kit item 58725 too new to judge $399.99today New
  4. MADDOXCooling System Test and Refill Kit item 64985 hasn't moved in months $84.99today Steady
  5. MADDOXDeluxe Compression Test Kit, 10-Piece item 64917 hasn't moved in months $54.99today Steady
  6. MADDOXDeluxe Fuel Injection Service Kit item 58817 hasn't moved in months $99.99today Steady
  7. MADDOXEngine and Transmission Oil Pressure Test Kit item 64872, in-store only hasn't moved in months $39.99today Steady
  8. PITTSBURGHEngine Oil Pressure Test Kit item 62621 hasn't moved in months $34.99today Steady
  9. MADDOXFuel Injection Pump Tester item 58760, in-store onlyMembers pay less not a steal, not a rip-off $29.99today Fair
  10. PITTSBURGHFuel Pump and Vacuum Tester item 62637 hasn't moved in months $17.99today Steady
  11. MADDOXMaster Diesel Compression Test Kit item 57588 hasn't moved in months $109.99today Steady
  12. ICONMaster Fuel Injection Service Kit item 64938 hasn't moved in months $299.99today Steady
  13. ICONPneumatic Cooling System Filler and Tester item 58001, in-store only too new to judge $119.99today New
  14. PITTSBURGHQuick Connect Compression Tester item 62622 hasn't moved in months $34.99today Steady
  15. MADDOXRadiator Pressure Test Kit item 64758 not a steal, not a rip-off $129.99today Fair
  16. PITTSBURGHRadiator Pressure Tester Kit item 63862 hasn't moved in months $99.99today Steady
  17. MADDOXUniversal Radiator Adapter Set item 56204 hasn't moved in months $54.99today Steady

Inspection Cameras

  1. AMES INSTRUMENTS2.7 in. Color Compact Digital Inspection Camera item 64623 hasn't moved in months $89.99today Steady
  2. CEN-TECHDigital Inspection Camera item 61839, in-store only hasn't moved in months $79.99today Steady
  3. ICONProfessional 4.3 in. Handheld Inspection Camera with 5.5 mm Dual Imager item 58398, in-store only too new to judge $189.99today New

Multimeters Probes Testers

  1. LEAKFINDER1 oz. Oil-Based Dye item 72991 hasn't moved in months $9.99today Steady
  2. LEAKFINDER1 oz. Universal A/C Dye item 72990 hasn't moved in months $9.99today Steady
  3. LEAKFINDER1 oz. Universal Coolant Dye item 72992 hasn't moved in months $9.99today Steady
  4. CEN-TECH6/12V Circuit Tester with 5 ft. Lead item 63603 it gets cheaper: see when, free $4.99today Wait
  5. ICON8 oz. Diagnostic Smoke Machine Fluid item 72757 hasn't moved in months $24.99today Steady
  6. CEN-TECH9-Function Digital Multimeter with Audible Continuity item 59410 hasn't moved in months $24.99today Steady
  7. MADDOXAdvance Timing Light item 71006 hasn't moved in months $49.99today Steady
  8. MADDOXBack Probe Kit, 22-Piece item 70614, in-store onlyMembers pay less not a steal, not a rip-off $14.99today Fair
  9. HI TECHCircuit Breaker Detective item 96934 hasn't moved in months $29.99today Steady
  10. CEN-TECHCircuit Tester Set, 3-Piece item 63612 hasn't moved in months $5.99today Steady
  11. MADDOXCombustion Leak Detector item 64814 hasn't moved in months $37.99today Steady
  12. BLOCK-TESTERCombustion Leak Detector Fluid item 56154 hasn't moved in months $10.49today Steady
  13. CEN-TECHComputer-Safe Automotive Logic Probe item 63597 hasn't moved in months $9.99today Steady
  14. MADDOXCylinder Leak-Down Tester item 64918, in-store only not a steal, not a rip-off $84.99today Fair
  15. ICONDiagnostic Smoke Machine item 59431 not a steal, not a rip-off $599.99today Fair
  16. CEN-TECHDigital Photo Sensor Tachometer item 66632 hasn't moved in months $39.99today Steady
  17. AMES INSTRUMENTSDM300 Pocket-Sized Digital Multimeter item 64018, in-store only hasn't moved in months $19.99today Steady
  18. PITTSBURGHMechanics Stethoscope item 63691 not a steal, not a rip-off $9.99today Fair
  19. PITTSBURGHNoid Light and IAC Tester Set, 11-Piece item 97959 hasn't moved in months $29.99today Steady
  20. POWER PROBEPP319FTC Circuit Tester item 58566Members pay less not a steal, not a rip-off $225.21today Fair
  21. ICONProfessional Digital Display Circuit Light Tester with Interchangeable Shanks item 70624 hasn't moved in months $79.99today Steady
  22. ICONProfessional Refrigerant Leak Detector item 59375 hasn't moved in months $179.99today Steady
  23. POWER PROBEShort/Open Circuit Tester item 70601, in-store onlyMembers pay less not a steal, not a rip-off $264.31today Fair
  24. CEN-TECHXenon Advance Timing Light item 40963 hasn't moved in months $39.99today Steady

Prices as of Nov 5, 2026. Each item's page has today's.