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SPECIFICATIONS
Model . . . . . . . . . . . . . . . UA-851
Type . . . . . . . . . . . . . . . . Oscillometric
Display . . . . . . . . . . . . . . . Digital, 20-mm character height
Pressure/pulse displayed simultaneously
Memory . . . . . . . . . . . . . . 90 readings
Measurement range. . . . . . . . . Pressure: 20 mmHg to 280 mmHg
Pulse: 40 pulses to 180 pulses
Accuracy . . . . . . . . . . . . . . Pressure: ±3 mmHg or ±2%,
whichever is greater
Pulse: ±5%
Pressurization. . . . . . . . . . . . Automatic, using micropump
Depressurization . . . . . . . . . . Active exhaust valve
Power source . . . . . . . . . . . . 4 type “AA” (1.5 volt) alkaline
batteries (included) or 120 V
AC Adapter (optional)
Battery life . . . . . . . . . . . . . Approximately 4 months with
one daily measurement
Operating environment. . . . . . . 50ºF to 104ºF (10ºC to 40ºC)
Less than 85% relative humidity
Storage environment . . . . . . . . -14ºF to 140ºF (-10ºC to 60ºC)
Less than 95% relative humidity
Dimensions. . . . . . . . . . . . . Length: 4.7”(120 mm)
Width: 5.9”(150 mm)
Height: 6.1” (156 mm)
Weight . . . . . . . . . . . . . . . 17.6 oz. (500 g) without batteries
Blood pressure measurements determined by the UA-851 are equivalent to
those obtained by a trained observer using the cuff/stethoscope auscultation
method within the limits prescribed by the American National Standards
Institute for electronic or automated sphygmomanometers.