A dual output subsea sensor connection assembly for connecting at least two subsea cables (301, 302) to a dual output subsea sensor, the dual output subsea sensor being adapted to be coupled to different locations on a subsea hydrocarbon production or processing facility to measure pressure or temperature; the dual output subsea sensor connection assembly being characterized in that the connection assembly comprises: - an adapter piece configured to be mounted to a rear part of the dual output subsea sensor, - a sensor port in the adapter piece through which at least a first sensor connection and a second sensor connection are led to the dual output subsea sensor, - a first port in the adapter piece for providing a connection to a first subsea cable of the subsea cables (301, 302), - a second port in the adapter piece for providing a connection to a second subsea cable of the subsea cables (301, 302), - a first penetrator arranged in the first port in the adapter piece, wherein the first penetrator provides a liquid tight seal between an interior space of the adapter piece and a duct connectable to the first port, and wherein the first penetrator leads the first sensor connection through the first port, - a second penetrator arranged in the second port in the adapter piece, wherein the second penetrator provides a liquid tight seal between the interior space of the adapter piece and a duct connectable to the second port, and wherein the second penetrator leads the second sensor connection through the second port, wherein the sealing provided by the first penetrator in the adapter piece and by the second penetrator in the adapter piece is such that there is no fluid communication between the duct connectable to the first port and the duct connectable to the second port through the adapter piece, and wherein the first penetrator is sealed in the first port by a weld, and wherein the second penetrator is sealed in the second port by a weld. - an adapter piece configured to be mounted to a rear part of the dual output subsea sensor, - a sensor port in the adapter piece through which at least a first sensor connection and a second sensor connection are led to the dual output subsea sensor, - a first port in the adapter piece for providing a connection to a first subsea cable of the subsea cables (301, 302), - a second port in the adapter piece for providing a connection to a second subsea cable of the subsea cables (301, 302), - a first penetrator arranged in the first port in the adapter piece, wherein the first penetrator provides a liquid tight seal between an interior space of the adapter piece and a duct connectable to the first port, and wherein the first penetrator leads the first sensor connection through the first port, - a second penetrator arranged in the second port in the adapter piece, wherein the second penetrator provides a liquid tight seal between the interior space of the adapter piece and a duct connectable to the second port, and wherein the second penetrator leads the second sensor connection through the second port, wherein the sealing provided by the first penetrator in the adapter piece and by the second penetrator in the adapter piece is such that there is no fluid communication between the duct connectable to the first port and the duct connectable to the second port through the adapter piece, and wherein the first penetrator is sealed in the first port by a weld, and wherein the second penetrator is sealed in the second port by a weld.