Taken from website:

The Power Meter i-D is a unique monitoring tool that measures and displays horsepower and speed. The Power Meteor i-D is one of the only units in the world that can display both standard and metric measurements.

Power output can be display in HP, PS and kW. Speed can be displayed in MPH and km/h. Both power and speed can be displayed in digital and graphical form. The Power Meter id also has a Chassis Dynamo function, which plots Horsepower to Speed in a graph form.

Power Meter i-D also has the ability to time the following
0-50mph (0-100km/h), 0-100mph (0-200km/h), 0-200mph (0-300mph)
0-1/8mile (0-2--m), 0-1/4 mile (0-400m), 0-5/8 mile (0-1km)

The Power Meter i-D also has the ability to record and data log up to 5 different times.

Features:
Compact 1/2 din size
Chassis dynamometer (up to 1183hp)
Reads speed in mph or km/h (up to 249 mph or 399kph)
User adjustable brightness and contrast
Easy to read illumi-drive (i-D) white lighting
Easy 3 wire hook up (attaches to stock speed sensor)

Compatible with naturally aspirated and turbo charged vehicles

$100 take it (its silver)