SEAFLO NT301 vs NT604 — Which Scanner Should You Buy?
The NT301 and NT604 Elite are two of the most common SEAFLO upgrade paths. The NT301 focuses on engine OBD2; the NT604 adds ABS, SRS, transmission, and bundled battery testing. Here is how to choose.
1 NT301 — engine diagnostics only
Read/clear engine codes, live data graphs, smog readiness, freeze frame, and battery voltage. Does not access ABS, airbag, or transmission modules on most vehicles.
2 NT604 Elite — four-system scanner + BT301
Scans engine, ABS, SRS, and transmission on 100+ brands. Bundled BT301 battery tester and service resets including oil light. Better when you maintain multiple systems.
3 Price difference
The NT301 costs less upfront. The NT604 Elite costs more but replaces a separate battery tester and adds module coverage that pays off after one ABS or airbag diagnosis.
4 Quick recommendation
Check engine light only → NT301. Need ABS, SRS, transmission, or oil reset → NT604 Elite. Still unsure? Use our Product Finder or Compare table.
Frequently asked questions
What is the best SEAFLO pump in SEAFLO NT301 vs NT604 — Which Scanner Should You Buy??
Read/clear engine codes, live data graphs, smog readiness, freeze frame, and battery voltage. See our full comparison below and use the Product Finder for a personalized pick.
Which model should I buy?
Check engine light only → NT301. Need ABS, SRS, transmission, or oil reset → NT604 Elite. Still unsure? Use our Product Finder or Compare table.
Where can I compare SEAFLO models side by side?
Use our Compare table at /compare/ for specs, prices, and bidirectional support across 14 curated models, or try the Product Finder wizard at /product-finder/.