Monitoring hydration of people is a tedious work, which is done most of the time also inaccurately. The current invention comprises a drinking cup (100) comprising:- an opening (110) for outflow of a fluid (10) held in the cup (100);- and a drinking sensor (120, 125) for detecting (230) drinking of the outflow of the fluid (10), wherein the drinking sensor (120, 125) is a capacitive drinking sensor (125.7, 125) comprising conductive strips (126, 172, 182) arranged substantially in line with each other forming a ring on the outside of the cup (100) and being arranged to the opening (110) for detecting (230) the presence of lips during the outflow.;The cup (100) according to the current invention provides the advantage of an improved accuracy of monitoring the hydration of a person drinking from the cup (100) making the work of caretakers easier and allowing for improved treatment.
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