An apparatus and method to detect combustion conditions using ion signals for use in a feedback control of a reciprocation engine is presented. A device color profile associated with a device is identified. A first operating unit obtains a third data by calculating an XOR between the second data and the access key, the access key being set by the source of request for writing data to the memory. A short gas surpressure is required to drive entry of chemical reagents into the said frit.