handheld obd‑ii scanner
Is $35 Handheld OBD‑II Scanner Worth Automotive Diagnostics?
Yes - at $35, a handheld OBD-II scanner can reliably read up to 90% of common fault codes, letting owners replace misfiring spark plugs or clear emissions alerts without a dealer appointment. The device plugs into the OBD-II port, streams live sensor data to a smartphone app, and offers step-by-step