Abstract: A multiple parameter monitoring system for ambulatory human patients utilizes a separate harness to be removably worn by each patient. The harness is adapted to engage the chest of the patient and incorporates a first ECG data sensing device engaging the patient to produce first and second analog voltages having variable magnitudes which are measurements of the body MCL1 and MCL6 data respectively; a second respiratory amplitude sensing device to produce a first analog signal having a variable magnitude which is a measurement of the respiratory amplitude of the patient; and a third temperature sensing device engaging the patient to produce a second analog signal which is a measurement of the temperature of the patient.