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The 24 best-selling detection on AliExpress

We picked 24 detection from AliExpress with real orders and good reviews. Prices go from CHF 1.93 to CHF 127, the average rating is 4.8 stars and the most popular one has 23.3k orders. Every product opens on AliExpress, where you pay with buyer protection.

Updated: 2026-11

  1. 1RELIFE XA5 Inductance Tester Electromagnetic Non-Contact Fault Detection-53%RELIFE XA5 Inductance Tester Electromagnetic Non-Contact Fault DetectionCHF 1.93 CHF 4.14★ 4.9 · 23.3k soldView on AliExpress →
  2. 2ANENG 11-25V Relay Detector RT01 Digital Universal 4/5 Pins Car Battery Vehicle Detection-58%ANENG 11-25V Relay Detector RT01 Digital Universal 4/5 Pins Car Battery Vehicle DetectionCHF 7.82 CHF 18.45★ 4.7 · 10.1k soldView on AliExpress →
  3. 3Relay Detector 11-25V ANENG RT01 Digital Universal 4/5 Pins Car Battery Vehicle Detection-58%Relay Detector 11-25V ANENG RT01 Digital Universal 4/5 Pins Car Battery Vehicle DetectionCHF 8.79 CHF 20.72★ 4.7 · 3k soldView on AliExpress →
  4. 4ALIENTEK USB Tester C2 Digital Voltmeter Charging Power Detector PD3.2 Battery Tester Fast-50%ALIENTEK USB Tester C2 Digital Voltmeter Charging Power Detector PD3.2 Battery Tester Fast Charge Detection TrCHF 26.94 CHF 53.44★ 4.9 · 2.1k soldView on AliExpress →
  5. 570mai Dash Cam A810S 4K HDR GPS ADAS Auto Record Dual-Channel Motion Detection 4G LTE Supp70mai Dash Cam A810S 4K HDR GPS ADAS Auto Record Dual-Channel Motion Detection 4G LTE SuppCHF 123★ 4.8 · 2k soldView on AliExpress →
  6. 6Car BSD Blind Spot Monitoring System 24GHz Microwave Radar Blind Spot Detection System BSM-7%Car BSD Blind Spot Monitoring System 24GHz Microwave Radar Blind Spot Detection System BSMCHF 54.67 CHF 58.78★ 4.8 · 811 soldView on AliExpress →
  7. 74K 4CH Hidden Dash Cam with APP Night Vision Motion Detection 24/7 Parking Monitor G-Senso-63%4K 4CH Hidden Dash Cam with APP Night Vision Motion Detection 24/7 Parking Monitor G-SensoCHF 29.71 CHF 79.90★ 4.6 · 714 soldView on AliExpress →
  8. 8Car Relay Tester Diagnostic Tools 12V-24V Voltage Tester Battery Automotive LED Indicator -56%Car Relay Tester Diagnostic Tools 12V-24V Voltage Tester Battery Automotive LED Indicator Relay Detection DiagCHF 8.45 CHF 19.26★ 4.7 · 674 soldView on AliExpress →
  9. 9Auto UV Dye air conditioning leak Test Repair Fluorescent Tools kit Car Detection Repair R-67%Auto UV Dye air conditioning leak Test Repair Fluorescent Tools kit Car Detection Repair R134a RefrigerantCHF 9.59 CHF 29.07★ 4.6 · 500 soldView on AliExpress →
  10. 10OBDResource 12V/24V Car Relay Tester 4Pin 5Pin Relay Detection Diagnostic Tool Professiona-60%OBDResource 12V/24V Car Relay Tester 4Pin 5Pin Relay Detection Diagnostic Tool ProfessionaCHF 8.50 CHF 21.22★ 4.9 · 312 soldView on AliExpress →
  11. 1124Ghz Millimeter Wave Radar BSD Blind Spot Detection System Safety Driving Monitoring Assi-35%24Ghz Millimeter Wave Radar BSD Blind Spot Detection System Safety Driving Monitoring AssiCHF 54.66 CHF 83.85★ 4.9 · 283 soldView on AliExpress →
  12. 12Hirisi B2032 Carp Fishing LED Swinger Drop Off Indicator Metals Soft Pole LED Light Bite D-50%Hirisi B2032 Carp Fishing LED Swinger Drop Off Indicator Metals Soft Pole LED Light Bite DetectionCHF 28.22 CHF 56.46★ 4.9 · 133 soldView on AliExpress →
  13. 131PC/1set Car Air Conditioning Leakage Plug Condenser Air-conditioning Compressor Pump Leak-53%1PC/1set Car Air Conditioning Leakage Plug Condenser Air-conditioning Compressor Pump Leak Detection Female PaCHF 3.61 CHF 7.68★ 4.8 · 102 soldView on AliExpress →
  14. 1479Ghz 50M Millimeter Wave Radar BSD Blind Spot Detection System Lane Change Assist Highlig-31%79Ghz 50M Millimeter Wave Radar BSD Blind Spot Detection System Lane Change Assist HighligCHF 127 CHF 183★ 5.0 · 78 soldView on AliExpress →
  15. 15BSD Blind Spot Light Car Blind Spot Detection System Safety Driving Radar Change Lane Aide-48%BSD Blind Spot Light Car Blind Spot Detection System Safety Driving Radar Change Lane AideCHF 9.30 CHF 17.86★ 4.8 · 62 soldView on AliExpress →
  16. 164K Mirror Dash Cam 4 Channel WIFI GPS ADAS BSD Blind Spot Detection Reverse Assist RearVie-10%4K Mirror Dash Cam 4 Channel WIFI GPS ADAS BSD Blind Spot Detection Reverse Assist RearVieCHF 91.01 CHF 101★ 5.0 · 46 soldView on AliExpress →
  17. 17E3Z-T61 Long-Distance Infrared Laser Beam Sensor Background Suppression Photoelectric Swit-22%E3Z-T61 Long-Distance Infrared Laser Beam Sensor Background Suppression Photoelectric Switch DetectionCHF 9.67 CHF 12.44★ 5.0 · 41 soldView on AliExpress →
  18. 184G Relay GPS Tracker MV930G ACC Detection Engine Cut Off Mini Car Tracking Device MiCODUS -25%4G Relay GPS Tracker MV930G ACC Detection Engine Cut Off Mini Car Tracking Device MiCODUS Hidden FleetCHF 27.80 CHF 37.27★ 4.6 · 40 soldView on AliExpress →
  19. 19Electronic Stud Finder Wall Scanner, Wood & Metal Detector, 20mm Deep Detection Sensor wit-55%Electronic Stud Finder Wall Scanner, Wood & Metal Detector, 20mm Deep Detection Sensor with LED Light AudibleCHF 6.76 CHF 15.05★ 5.0 · 36 soldView on AliExpress →
  20. 2024Ghz Millimeter Wave Radar BSD Blind Spot Detection System Change Lane Safer BSM Blind Sp-5%24Ghz Millimeter Wave Radar BSD Blind Spot Detection System Change Lane Safer BSM Blind SpCHF 58.63 CHF 61.83★ 4.8 · 31 soldView on AliExpress →
  21. 21Hirisi 2Pcs Fishing Swinger Bite Indicators 6 Colors Sensitive Bite Detection Carp Feeder -54%Hirisi 2Pcs Fishing Swinger Bite Indicators 6 Colors Sensitive Bite Detection Carp Feeder Bank Fishing AccessoCHF 5.80 CHF 12.63★ 4.9 · 16 soldView on AliExpress →
  22. 22Night Fishing Float Bites Alarm With LED Light & Sound High Sensitivity Rod Tip Detection -50%Night Fishing Float Bites Alarm With LED Light & Sound High Sensitivity Rod Tip Detection Bites AlertsCHF 3.29 CHF 6.57★ 4.5 · 14 soldView on AliExpress →
  23. 23Automobile Leakage Detection Tool Precise Multi-functional Finder Automotive Circuit Teste-53%Automobile Leakage Detection Tool Precise Multi-functional Finder Automotive Circuit Tester Vehicle Battery LeCHF 6.83 CHF 14.59★ 5.0 · 10 soldView on AliExpress →
  24. 24BSD Blind Spot Detection System 50M 79Ghz Millimeter Wave Radar Lane Change Assist Highlig-32%BSD Blind Spot Detection System 50M 79Ghz Millimeter Wave Radar Lane Change Assist HighligCHF 113 CHF 166★ 5.0 · 10 soldView on AliExpress →

Quick picks

Most popularRELIFE XA5 Inductance Tester Electromagnetic Non-Contact Fault DetectionCHF 1.93 · ★ 4.9 · 23.3k soldBest rated79Ghz 50M Millimeter Wave Radar BSD Blind Spot Detection System Lane Change AssiCHF 127 · ★ 5.0 · 78 soldBiggest discountAuto UV Dye air conditioning leak Test Repair Fluorescent Tools kit Car DetectioCHF 9.59 · ★ 4.6 · 500 sold

How much to pay

Tip: read the latest buyer photos on AliExpress and check the size or model before you order. Products with many orders and a rating of 4.7 or more are usually the safest choice.

Questions

What is the best-selling detection?

The most popular one is "RELIFE XA5 Inductance Tester Electromagnetic Non-Contact Fault Detection", with 23.3k orders.

How much does a detection cost?

In this list prices go from CHF 1.93 to CHF 172; half of them cost less than CHF 26.94.

Which detection has the best reviews?

"79Ghz 50M Millimeter Wave Radar BSD Blind Spot Detection System Lane Change Assist Highlig" has an average of 5.0 stars with many orders.

Are there discounts?

Yes. On average these products are 40% below their original price on AliExpress. Prices change often.

Prices and ratings come from AliExpress and can change. We may earn a commission when you buy through our links, at no extra cost to you.

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