The Microlife Kroger BP3NM1-4NKRO is an automatic upper arm blood pressure monitor designed for home use. It features Microlife's patented AFIB detection technology, one-touch operation, a large LCD display with backlight, irregular heartbeat detection, 2-user memory with 99 readings each, WHO classification indicator, date/time display, and automatic averaging of the last 3 readings. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Main unit with LCD display, Upper Arm Cuff, AC Adapter (optional), 4x AA batteries, Instruction manual, and Storage case.
| Feature | Description |
|---|---|
| AFIB Detection | Patented technology to screen for possible Atrial Fibrillation |
| One-Touch Operation | Fully automatic inflation and measurement |
| Large LCD Display | Easy-to-read screen with backlight |
| WHO Classification Indicator | Color-coded bar graph showing blood pressure category |
| 2x99 Memory | Stores 99 readings for each of two users |
| Irregular Heartbeat Detection | Alerts if an irregular heartbeat is detected during measurement |
| Automatic 3-reading Average | Calculates average of last three consecutive readings |
| Date & Time Stamp | Records measurement date and time for tracking |
Read all instructions before use. For monitoring purposes only, not for diagnosis.
WARNING! This device is not a substitute for professional medical advice. Always consult your physician for diagnosis and treatment.
Unpack and inspect all contents. Contact customer service if anything is missing.
CAUTION! Use only the specified AC adapter. Using an incorrect adapter may damage the device.
Prepare the device for first measurement.
Tip: For most accurate results, take measurements at the same time each day, before medication or meals.
Follow these steps for an accurate reading.
WARNING! Do not move or talk during measurement. Ensure the cuff is at heart level for accurate results.
The display shows key information and symbols.
| Symbol/Display | Meaning |
|---|---|
| Systolic/Diastolic | Blood pressure reading (e.g., 120/80 mmHg) |
| Pulse Rate | Heartbeats per minute |
| WHO Bar Graph | Color-coded indicator (Green=Normal, Yellow=Prehypertension, Red=Hypertension) |
| AFIB Symbol | Flashing symbol indicates possible Atrial Fibrillation detected. Consult your physician. |
| Irregular Heartbeat Symbol | Appears if an irregular rhythm is detected during measurement. |
| User Icon (1 or 2) | Indicates which user profile is active. |
| Memory Index (M-##) | Shows memory location of current reading. |
Note: The AFIB screening feature is for indicative purposes only. A positive result requires confirmation by a physician.
Viewing and managing stored readings.
Unplug AC adapter (if used) and remove batteries before cleaning.
CAUTION! Never wash the cuff in a washing machine. Do not attempt to repair or disassemble the unit.
Replace batteries when the low battery icon appears on the display.
Note: If the device will not be used for an extended period, remove the batteries to prevent leakage and damage.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Display is blank | Batteries dead/incorrectly installed | Replace or correctly install batteries. Check AC adapter connection. |
| Error Symbol 'E' | Cuff not attached or leaking | Ensure cuff is connected properly. Check cuff and tube for damage. |
| Error Symbol 'Err' | Measurement error | Reapply cuff correctly, remain still, and retake measurement. |
| Irregular Heartbeat Symbol | Irregular rhythm detected | Stay calm and retake measurement. If symbol appears frequently, consult your doctor. |
| Inaccurate reading | Incorrect posture or cuff placement | Ensure proper sitting posture and cuff placement at heart level. Wait 5 minutes between readings. |
| Memory not saving | Memory full | Clear memory for the selected user profile. |
Reset: Remove batteries and AC adapter for 5 minutes, then reinsert to perform a soft reset.
Service: For technical support, contact Microlife USA: 1-888-396-6553 or visit www.microlife.com.