GlowShift’s White 7 Color Series Differential Temperature Gauge is electronically driven and will effectively read your vehicle’s differential temperature from 100° to 250° Fahrenheit. This gauge can be extremely useful in monitoring the performance of your truck’s transmission during conditions such as towing a heavy load. You’ll also have the classic look of an analog gauge with an illuminated red needle that sweeps 270 degrees and choice of a blue, green, yellow, purple, red, teal or white LED display on a White gauge face.