A subsea drilling system, including: a subsea blowout preventer stack including: stack sensors in communication with and capable of measuring a characteristic of the BOP stack; a sensor interface box separate from the sensors and locatable subsea, the SIB including a processor and a memory device capable of receiving and storing sensor measurement data; characterised in that the subsea blowout preventer further comprises: a stack wireless data and power interface capable of establishing a wireless data and power communication link for the SIB; and wherein the SIB is in data and power communication with the stack sensors; a subsea lower marine riser package (LMRP) connectable with the BOP stack and including: LMRP sensors in communication with and capable of measuring a characteristic of the LMRP; an SIB separate from the LMRP sensors and locatable subsea, the LMRP SIB including a processor and a memory device capable of receiving and storing sensor measurement data; an LMRP WDP interface capable of establishing a wireless data and power communication link for the LMRP SIB; and wherein the LMRP SIB is in data and power communication with the LMRP sensors; and the stack and LMRP SIBs are networked together for power and data communication through the WDP interfaces to form a network. a subsea blowout preventer stack including: stack sensors in communication with and capable of measuring a characteristic of the BOP stack; a sensor interface box separate from the sensors and locatable subsea, the SIB including a processor and a memory device capable of receiving and storing sensor measurement data; characterised in that the subsea blowout preventer further comprises: a stack wireless data and power interface capable of establishing a wireless data and power communication link for the SIB; and wherein the SIB is in data and power communication with the stack sensors; stack sensors in communication with and capable of measuring a characteristic of the BOP stack; a sensor interface box separate from the sensors and locatable subsea, the SIB including a processor and a memory device capable of receiving and storing sensor measurement data; characterised in that the subsea blowout preventer further comprises: a stack wireless data and power interface capable of establishing a wireless data and power communication link for the SIB; and a stack wireless data and power interface capable of establishing a wireless data and power communication link for the SIB; and wherein the SIB is in data and power communication with the stack sensors; a subsea lower marine riser package (LMRP) connectable with the BOP stack and including: LMRP sensors in communication with and capable of measuring a characteristic of the LMRP; an SIB separate from the LMRP sensors and locatable subsea, the LMRP SIB including a processor and a memory device capable of receiving and storing sensor measurement data; an LMRP WDP interface capable of establishing a wireless data and power communication link for the LMRP SIB; and wherein the LMRP SIB is in data and power communication with the LMRP sensors; and LMRP sensors in communication with and capable of measuring a characteristic of the LMRP; an SIB separate from the LMRP sensors and locatable subsea, the LMRP SIB including a processor and a memory device capable of receiving and storing sensor measurement data; an LMRP WDP interface capable of establishing a wireless data and power communication link for the LMRP SIB; and wherein the LMRP SIB is in data and power communication with the LMRP sensors; and the stack and LMRP SIBs are networked together for power and data communication through the WDP interfaces to form a network.