A fluid container (10) with a hollow body (12) for containing a fluid such as beverage (22) with a surrounding sidewall (16) extending between a top (18) and a bottom (20) provided with a flexible sensing strip (14) with discrete modular fluid characteristic sensing elements mounted to the sidewall (16) of a hollow body (12) for sensing an actual physical parameter of the fluid, a control module (24) and a detachable interface (26) between the sensing strip (14) and the control module (24) to enable sensing signals to be passed from the sensing strip (14) to the control module (24) has a detachable interface enabling tool-less disconnection of the control module (24) from the sensing strip (14) to enable replacement with another control module for repair or servicing. The individual sensing elements may also be toolessly disconnected from the strip for replacement or repair.