Below is a general manufacturer product group description. Please note the information below is not item specific. Item specifics are above in product details.

Putting together the most advance feature set ever seen in boost controllers, Auto Meter has redefined the category. These Auto Meter Electronic Boost Controllers are packaged in a familiar and easy to install 2 1/16 in. gauge housing, they offers some of the most powerful functions ever assembled for safely extracting the most performance possible from your forced induction application and the level of precision, response and durability racers have come to trust within the Auto Meter performance instrument range. Intuitive programming menus operated right through the controllers (no separate software or interface modules are required) make setup and use incredibly easy. Power is nothing without control. They are designed specifically for turbocharged gasoline engine combinations running up to 30 PSI of boost pressure.
Auto Meter Electronic Boost Controllers Feature:

High/Low boost modes: pre-program and set two different configurable boost settings that can be switched between on-the-fly with the push of a button, perfect for performance track day cars and racing applications
Boost By RPM/Boost by gear: integrating Auto Meter’s most advanced digital tachometer circuit, your boost curve can be tuned precisely by 500 RPM increments to minimize wheelspin and put more power to the ground
One touch gear capture: instantly capture each gear with the push of a button, drive normally in your chosen gear and hit the capture button
Peak boost recall: one touch recall of the highest boost pressure achieved during a given time
Configurable warnings with overboost protection: easy to set parameters provide a full face flashing warning if boost pressure moves beyond your settings to quickly alert the driver. The warning doubles in speed if boost pressures exceed your programmed settings by 2 PSI or more
Pro control uutput: using your programmed high and low boost settings, the Auto Meter boost controllers can automatically trigger external devices such as water methanol injection, intercooler sprayers, nitrous solenoids or other devices that can be activated via relay
Pro control input: can also be controlled by external devices, any ground signal sent to the pro control input will immediately back boost levels down wastegate spring pressure
Display: highly versatile, boost pressure reading units represented on the Digital LED display can be selected via the user button interface
Data logger output: configurable scale 0-5v analog voltage output in either PSIA or PSIG allow for signal sharing / boost readings with other performance electronics such as data acquisition systems or engine control units
Tach/Speed signal diagnostic: on board real time diagnostics to verify the presence and correct operation of both of these inputs