How accurate is my aneroid or mercurial blood pressure instrument?

If new, the unit must be within 3mmHg when tested against a reference instrument in order to meet ANSI/AAMI/ISO 81060 standards. ADC's PROSPHYG series instruments will always meet or exceed these standards. ADC's DIAGNOSTIX series manometers exceed these standards by as much as 66%. ADC DIAGNOSTIX brand mercury manometers are guaranteed to be within 1mmHg over their full range, while the DIAGNOSTIX brand aneroid manometers are guaranteed within 2mmHg when NEW.

Although most low cost imports will meet the +/-3mmHg standards most of the time, the difference between ADC brand instruments and those low cost models is often how well they will hold up under real world use. ADC manometers are designed to withstand the rigors of YOUR job. Superior materials, old world craftsmanship, the pre-aging of our aneroid movements, and use of mercury cartridge tubes with 25% larger 5mm inside bores ensure that your instrument will provide dependable service day in and day out. Simply put, they will generally stay accurate for a longer period of time! Guaranteed.