McKesson has the diagnostic supplies and instruments you need from top brands such as Welch Allyn, ADC, Covidien, Health O Meter and GE Healthcare, in addition to our own private label brand, McKesson Brands. Be sure to outfit your practice or facility with diagnostic supplies including blood pressure monitors, blood pressure cuffs, glucose meters, oximeters, thermometers, scales, body composition analyzers, ECG machines, EKG electrodes, otoscopes, ophthalmoscopes, vital signs monitors, stethoscopes, defibrillators, ultrasound probes and spirometers.