Electrocardiograph machine made by Medical Instrument Company Pty.Ltd. Cardiotrace Serial No.3233, circa 1920 used at a mental health hospital in Beechworth, Victoria, Australia.

An electrocardiograph measures the electrical activity of the heart.

Physical Description

Cardiotrace Electrocardiograph Machine in blue plastic case with black handle. Contains electric cord, cords to link electrodes, graph paper to measure heart beats, and instruments on panel marked 'stylus heat', 'off', 'run', 'position', 'test', 'record', '1', '2', '3', 'aVR', 'aVL', 'aVP', 'V', '1/2V', 'lmV', marker.


Example of diagnostic equipment used in a mental health hospital in Victoria Australia

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