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Microlife BP 3AS1-2 (BP 3AS1-2R)
Device Model:
BP 3AS1-2R
Manufacturer:
Microlife Corporation, 9F - 431 RuiGuang Road, NeiHu, Taipei 11492, TAIWAN ROC.
Measuring functions:
Blood pressure
Primary Client Use:
Intended for self-measurement and home use
Measurement Site:
Upper Arm
Measurement Occurrence:
Single measurements only
Availability:
Discontinued but still available
Device Manual:
Description:
The Microlife BP 3AS1-2 (BP 3AS1-2R) is a palm-style semi-automatic blood pressure monitor. Its blood pressure measurement technology has been proven to be accurate, with a 1-star Medaval rating. Blood pressure measurements are taken from the upper arm and it is intended for self-measurement and home use. This device has been discontinued by the manufacturer but may be available through certain outlets.
Assessment:
The technology used in the Microlife BP 3AS1-2 (BP 3AS1-2R), to measure blood pressure, has passed in three clinical validation studies, between general and pregnancy populations, according to recognised standard protocols, as published in peer-reviewed publications.
Recommendations:
Accuracy AssessmentRecommendationBasis
Medaval Recommendation Older clinical validation; older protocol; multiple clinical validations
BIHS (UK and IRL) Professional use for pregnancy Published evidence
ESH (Europe) Self-measurement and professional use for adults and pregnancy Published evidence
Stride BP Office use for adults and pregnancy (Preferred) Published evidence
MDR Criteria Pregnancy Published evidence
Device Family:
Microlife BP 3AS1-2 (BP 3AS1-2R)P , Microlife Cradle VSA (BP 3GP1-1L)P
Legend: P Stride Equivalence
Validation Publications:

de Greeff A, Nathan H, Stafford N, Liu B, Shennan AH. Development of an accurate oscillometric blood pressure device for low resource settings. Blood Press Monit. 2008 Dec;13(6):342-8. doi: 10.1097/MBP.0b013e32830fd07c. PMID: 19020425.

ESH-IP:2002 - Pass General population

Nathan HL, de Greeff A, Hezelgrave NL, Chappell LC, Shennan AH. An accurate semiautomated oscillometric blood pressure device for use in pregnancy (including pre-eclampsia) in a low-income and middle-income country population: the Microlife 3AS1-2. Blood Press Monit. 2015 Feb;20(1):52-5. doi: 10.1097/MBP.0000000000000086. PMID: 25243711.

BHS:1993 - Pass (B/A) Pregnancy and pre-eclampsia (n=45)

81060-2:2013 - Pass Pregnancy and pre-eclampsia (n=45)

Nathan HL, de Greeff A, Hezelgrave NL, Chappell LC, Shennan AH. Accuracy validation of the Microlife 3AS1-2 blood pressure device in a pregnant population with low blood pressure. Blood Press Monit. 2015 Oct;20(5):299-302. Epub: 2015 May 5. doi: 10.1097/MBP.0000000000000134. PMID: 26020367.

BHS:1993 - Pass (A/A) Low BP pregnancy (n=30)

81060-2:2013 - Pass Low BP pregnancy (n=30)