This device is primarily designed to solve the problem of using car tires with size different from the car manufacturer specification.You can now use the tire you always wanted to and it is designed to be used for a multitude of vehicles from Subaru to Mazda.
Technical: The device is designed to measure the frequency of the VSS signal and convert it to a VSS signal with an adjustable calibration factor to account for tire size change.
This device also allows for accurate wheel size adjustment or speed calibration via a built in potentiometer.
Small, dust proof and water resistant. Easy to install. Installation guide can be found at : http://dccdpro.com/main/wp-content/downloads/VSSCal.pdf