A battery-powered electronic device designed to measure two or more parameters (e.g., temperature, conductivity, pressure, pH, flow) to calibrate or test a medical device (e.g., haemodialysis equipment, anaesthesia machine, suction system, ophthalmic laser). It typically consists of a hand-held electronic box with appropriate connections and a digital display; dedicated measuring devices (e.g., probe, sensor, electrode, buffer solution) are typically included. It is not dedicated to a specific clinical discipline and is intended to be used by a professional in a professional setting (e.g., clinical engineering).
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