When your dashboard lights up, you face two questions: what code is stored, and which systems are affected. These two automotive diagnostic tools answer that in very different ways. The OBDMATE OM901 (listed at $109.99) talks to four major systems, while the Cotit Parts Automotive OBD2 Scanner (listed at $18.59) keeps things simple and cheap. One is a multi-system reset tool; the other is a no-frills engine code reader.
Quick verdict: If you want to diagnose and reset warning lights for ABS, SRS, transmission, and engine all from one handheld scanner, the OBDMATE OM901 is the more complete pick. If your only concern is the check engine light and you'd rather spend $18.59 than $109.99, the Cotit Parts scanner will handle the basics. The price spread is substantial: the lower-cost scanner is 83% below the higher-priced one.
Side-by-side comparison:
| Feature | OBDMATE OM901 | Cotit Parts Automotive OBD2 Scanner |
|---|---|---|
| Price | $109.99 | $18.59 |
| Systems covered | ABS, SRS, engine, transmission | Engine |
| Warning-light reset | ABS, SRS, engine, transmission | Erase engine codes |
| Data view | Live data stream, auto VIN | Freeze frame data |
| Included extras | Silicone case, hard-shell case | USB cable, user guide |
Both are listed as new and plug into your car's OBD port. The right choice depends on the warning lights you actually see. If ABS, SRS, transmission, and engine all appear on your dashboard, the OM901 gives you one handheld tool for those systems. If it's just the check engine light, the lower-priced scanner covers the basics.
Where each product wins:
- The OBDMATE OM901 wins when you need multi-system diagnostics, ABS/SRS/transmission resets, and a live data stream.
- The Cotit Parts Automotive OBD2 Scanner wins when your budget is tight and engine-code reading, code erasing, freeze frame data, and battery voltage checks are enough.
OBDMATE OM901 OBD2 Scanner
At $109.99, this scanner goes beyond a basic check engine reader. It covers the four most-used systems: ABS, SRS, engine, and transmission. It can clear fault codes, turn off warning lights, read the live data stream, and auto-VIN. The 3.5-inch TFT screen makes the menus easier to read, and the included silicone protective case and hard-shell carrying case help protect the handheld unit. It is plug-and-play, so no batteries or updates are needed. The main limitation is the price: if you only see engine codes on a regular basis, spending $109.99 may be more than you need.
Cotit Parts Automotive OBD2 Scanner
At $18.59, this OBD2 scanner keeps the entry cost low. It comes with a USB cable and user guide, connects through OBD, and focuses on engine diagnosis. You can erase codes, pull up freeze frame data, and measure battery voltage, which covers the most common check-engine-light scenarios. The USB cable and user guide are helpful for getting started and for keeping the tool powered or connected. The trade-off is the scope of the tool: the OM901 goes on to cover ABS, SRS, and transmission as well. For a basic code reader at a low price, the Cotit Parts scanner is a practical starting point.
Final choice by use case:
- Choose the OBDMATE OM901 if you want one tool to handle ABS, SRS, transmission, and engine warning lights, with a larger screen and a live data stream.
- Choose the Cotit Parts Automotive OBD2 Scanner if you're on a strict budget and only need engine code reading, code erasing, freeze frame data, and battery voltage checks.

