# K013485: Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-1, with Optional Thermal Printer, Model PR 1KA1

- Pathway: 510(k) (Traditional)
- Applicant: Microlife Corp.
- Decided: Jan 17, 2002 after 90 days
- Product code: DXN (System, Measurement, Blood-Pressure, Non-Invasive)
- Device class: 2
- Regulation: 21 CFR 870.1130
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K903134 (1991). 2 ancestors in all.
122 later devices descend from it; 3 cite it directly.
0 of 125 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K970211: Microlife Automatic Blood Pressure Monitor, Micro Weiss Electronics (1998) Summary page 1.

## Most influential descendants
- K041411: Microlife Upper Arm Blood Pressure Monitor, Model BP-3BTO-AP (2004), 120 descendants of its own
- K060686: Microlife Automatic Blood Pressure Monitor, Model BP3AC1-1PC (2006), 86 descendants of its own
- K081590: YA Horng Arm Type Digital Blood Pressure Monitor, Models BP-600, BP-600R, BP-600U, BP-600B, BP-600RB, BP-600UB, BP-600J (2008), 46 descendants of its own
- K083093: Cheetah Reliant (2008), 45 descendants of its own
- K073198: Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model Watchbp Home (BP3MX1-1) (2008), 36 descendants of its own

## Indications for use
The Microlife Upper Arm Automatic Blood Pressure Monitor, Model BP-3BTO-1 with Optional Thermal Printer, Model PR 1KA1 is a device intended to measure the systolic and diastolic blood pressure and pulse rate of an adult individual by using a non-invasive technique in which an inflatable cuff is wrapped around the upper arm. This device can be used in connection with the Microlife Thermal Printer.

Source page: https://510kreport.com/device/K013485
Methodology: https://510kreport.com/methodology