The Peterbilt 2006 and Newer Amp Meters are a practical and reliable solution for monitoring your vehicle's electrical system. With a gauge that reads from negative 120 to positive 120 amps, you can easily keep track of your vehicle's power usage. The LED display, available in red, blue, or green, ensures clear visibility in any lighting condition. Made in the USA and designed to fit most Peterbilt models from 2006 and newer, these amp meters are a dependable choice for maintaining optimal electrical performance.