This set of tools contains hardware (IR Tools) and software (EIS/EZS Password Reader and Key Emulation).
With the use of EIS/EZS Password reader you can easily read hash codes/ information about keys/ password directly from the Mercedes-Benz ignition lock (EIS/EZS) through IR. You can also emulate original Mercedes-Benz key with the use of IR Tool (this feature is especially useful when you have W203 vehicle with a non working NEC key) to quickly check if the problem you had encountered is located inside of the ignition lock (EIS/EZS) or steering lock (ESL/ELV).