Actron CP9449 BrakeScan Diagnostic Scanner for Antilock Brake Systems

The Actron ABS BrakeScan is an innovative and affordable solution to brake repairs. Developed by the same experts that designed the first retail Check Engine Light reader and scan tool, the Actron ABS BrakeScan connects to most domestic vehicles 1996 and newer and allows you to diagnose Anti-Lock Brake problems on your own
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ScanGauge II 3-in-1 Compact Multifunction Vehicle Computer with Customizable Display

This little box is very useful. In my case it already paid for itself. I was able to clear some service codes (misfire of a cylinder). In the past I paid $69 for the mechanic to just look up and clear the code.
I really like the fact that ScanGauge displays all kinds of engine data in real time. Other devices such as the CarChip save it and then need to be connected to a computer in order to access the data. In my opinion, the ScanGauge is worth every cent. get here

ScanGauge II 3-in-1 Compact Multifunction Vehicle Computer with Customizable Display

The ScanGaugeII is a 3-in-1 automotive computer that combines a multifunction trip computer, diagnostic scan tool, and up to 37 digital gauges in one small package. It connects easily to your vehicle's On-Board Diagnostic (OBDII) port and communicates directly with the vehicle's computer. Not sure if your car uses OBDII or Controller Area Network (CAN)? The unit will automatically determine which system to use and switch to it. The ScanGaugeII works on all 1996 or newer OBDII cars, including gas, diesel, propane and hybrid vehicles, as well as vehicles with the latest CAN systems. A detachable cable allows for easy transfer between multiple vehicles. Its menu-driven operation means there's no need to memorize complex sequences, and no tools are required for installation.