There is provided a combination of a portable monitoring device (9) for remotely monitoring a medical device (1) for use in hospitals and the like and having a signal receiver for receiving a first wireless signal, and said medical device (1) in the form of a portable drip infusion set of the type comprising a liquid supply, a drip chamber downstream of said liquid supply for forming liquid drops, a flexible tube connecting said drip chamber with an injection needle and a signal emitter for emitting said first wireless signal. The infusion set (1) and monitoring device (9) each comprise printed circuit boards (PCBs) (33, 23) and comprise mutually interconnectible electric contacts (11, 11a). The infusion set (1) comprises an electronic circuitry that blocks programming of the infusion set (1) when the monitoring device (9) is not electrically connected to the infusion set (1).
