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24 best code reader under CHF 20.00

We picked 24 code reader from AliExpress with real orders and good reviews. Prices go from CHF 2.43 to CHF 18.60, the average rating is 4.8 stars and the most popular one has 48.6k orders. Every product opens on AliExpress, where you pay with buyer protection.

Updated: 2026-11

1. 1-54%Professional Obd2 Diagnostic Tool for Heavy-Duty Vehicle Repair - Code Reader/Resetter, Supports Real-TimeCHF 8.97 CHF 19.49★ 4.9 · 48.6k soldView on AliExpress →
2. 2-54%Popular ELM327 WiFi OBD2 Diagnostic Scanner V1.5 Car Code Reader Check Engine Fault DetectCHF 3.56 CHF 7.75★ 4.9 · 30.4k soldView on AliExpress →
3. 3-57%M9 2026 OBD2 Code Reader Car Diagnostic Scanner Vehicle Scanner ToolCHF 2.77 CHF 6.37★ 4.9 · 24k soldView on AliExpress →
4. 4-58%Mini ELM327 V1.5/V2.1 Bluetooth OBD2 Scanner Code Reader Car Diagnostic Tools Check EngineCHF 2.43 CHF 5.83★ 4.9 · 10.4k soldView on AliExpress →
5. 5-55%Car Diagnostic Tool CY3001 OBD2 Scanner Code Reader Car Voltage Tester Engine Fault Code SCHF 8.32 CHF 18.53★ 4.9 · 8.7k soldView on AliExpress →
6. 6-57%Mini ELM327 V2.1 OBD2 Scanner Code Reader Bluetooth Car Diagnostic ToolCHF 2.43 CHF 5.71★ 4.5 · 7.2k soldView on AliExpress →
7. 7-54%V600 OBD2 Diagnostic Scanner Car Code Reader Vehicle Health Inspection Tool Auto Code ReadCHF 6.48 CHF 14.13★ 4.9 · 6.7k soldView on AliExpress →
8. 8-61%V510 Professional Obdii Diagnostic Scanner, Engine Fault Code Reader, Live Data Stream, ICHF 7.99 CHF 20.34★ 4.9 · 6.3k soldView on AliExpress →
9. 9-57%KONNWEI MAXOBD Bluetooth OBD2 Scanner Auto Engine Code Reader Car Diagnostic Detector SuppCHF 13.21 CHF 31.01★ 4.9 · 4.3k soldView on AliExpress →
10. 10-56%OBD2 Scanner ELM327 Car Diagnostic Detector Code Reader Tool V1.5 WIFI Bluetooth OBD 2 forCHF 3.28 CHF 7.40★ 4.9 · 3.5k soldView on AliExpress →
11. 11-67%Bluetooth ELM327 OBD2 Car Code Reader Scanner V1.5 Fault Detector Check Engine AutomotiveCHF 2.43 CHF 7.34★ 4.9 · 3.3k soldView on AliExpress →
12. 12-65%V315 OBD Diagnostic Scanner Auto Car Code Reader And Scanner Vehicles' Health Inspection TCHF 6.64 CHF 18.74★ 4.9 · 2.5k soldView on AliExpress →
13. 13-57%2Layer Hardware V1.5 Chip PIC18F25K80 ELM327 Bluetooth V1.5 Auto Code Reader Super MINI ELCHF 5.80 CHF 13.45★ 4.9 · 2.4k soldView on AliExpress →
14. 14-53%V600 OBD2 Diagnostic Scanner Car Code Reader Vehicle Health Inspection Tool Auto Code Reader ScannerCHF 9.20 CHF 19.57★ 4.6 · 2.4k soldView on AliExpress →
15. 15-56%ELM327 Bluetooth 5.1 V2.1 Auto OBD2 Scanner Car Diagnostic Tool Code Reader Tool Super MINCHF 3.11 CHF 7.10★ 4.9 · 2.2k soldView on AliExpress →
16. 16-60%ELM327 V1.5 Bluetooth 5.1 Car Code Reader With PIC18F25K80 ChipCHF 5.63 CHF 14.16★ 4.9 · 1.9k soldView on AliExpress →
17. 17-57%LAUNCH X431 Creader CR3001 OBD2 Scanner Engine Fault Automotive OBDII OBD Code Reader Diagnostic ScaCHF 18.60 CHF 43.67★ 4.9 · 428 soldView on AliExpress →
18. 18-55%ELM327 Code Reader Scan Tool Bluetooth 5.1 Car Scanner JFIND JF327CHF 6.75 CHF 15.05★ 4.5 · 377 soldView on AliExpress →
19. 19-49%Car OBD2 Scanner Diagnostic Tool Code Reader, Car Voltage Tester Engine Fault Code Scanner, Charging Tester DiCHF 11.20 CHF 21.78★ 4.5 · 343 soldView on AliExpress →
20. 20ELM327 Bluetooth 5.1 Mini ELM327 v1.5 With PIC18F25K80 Chip OBD2 Car Scanner Diagnostic Tool Code ReaderCHF 7.59★ 4.7 · 68 soldView on AliExpress →
21. 21-15%KONNWEI KW902 ELM327 v1.5 Auto Scanner OBD2 Car Diagnostic Tool Bluetooth Mini ELM 327 Code ReaderCHF 11.25 CHF 13.26★ 4.8 · 55 soldView on AliExpress →
22. 22-54%Mini ELM327 V2.1 OBD2 Scanner Code ReaderCHF 3.12 CHF 6.77★ 4.9 · 53 soldView on AliExpress →
23. 23-47%Mini ELM327 OBD2 Scanner V1.5 Bluetooth OBD Car Diagnostic Tool Code ReaderCHF 3.89 CHF 7.29★ 4.6 · 51 soldView on AliExpress →
24. 24-52%Obd2 Scanner Code Reader Car Diagnostic Tool Engine Fault Code Reader, Used to Clear Cel, with Real-TimeCHF 9.13 CHF 19.03★ 4.9 · 49 soldView on AliExpress →

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