Not so sure..my unit will arrive on Monday so just ask for how is it like
..according to the supplier for the unit Im getting:
"Dashboard Dyno, and quarter mile timer, and brake tester and suspension analyzer. Everything you need to tune your cars performance As you accelerate, the GTech meter is measuring power, speed and distance, and memorizing your 0-100, 0-400m, speed and peak power.
The heart of the GTECH/Pro is a precision silicon accelerometer. An accelerometer is a sensor that measures acceleration, also known as G-Force. G-Force is what's keeping you in your seat as you are reading these words and if it wasn't for the seat you would be accelerating to the ground at 1G (32 feet per second per second).
G-TECH/Pro measures your speed and distance traveled by integrating acceleration over time. Basically, if you know how fast you are accelerating for a certain time period you'll know how much your speed has changed after that time period. So, if you start of from zero speed then you'll know what your speed is after every time period. These time periods are very small (2.5 milliseconds) and that's how G-TECH/Pro maintains its accuracy."