: Dual mode with 99 sets of measurements for each user. Display : 80x60mm digital LCD screen. Power Source : Requires 4 x AA batteries or a DC 6V adapter.
: 0 to 280 mmHg (Pressure); 40 to 199 pulses/min (Pulse). rak283 blood pressure monitor user manual
The main unit featuring a large LCD display. : Dual mode with 99 sets of measurements for each user
The lower edge of the cuff should sit about 1 inch (2–3 cm) above the bend of your elbow. : 0 to 280 mmHg (Pressure); 40 to 199 pulses/min (Pulse)
| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | Cuff too tight or loose | Rewrap cuff – one finger space only. | | E2 | Movement during measurement | Remain still and silent. Retest after 2 min rest. | | E3 | Cuff inflation timeout | Check tube connection. Ensure cuff is not blocked. | | E4 | Deflation too slow | Check for kinked air tube. Replace batteries. | | E5 | Systolic/diastolic out of range | Rest 10 min. If persists, check with manual device. | | E-H | Hardware error | Remove batteries for 10 sec. Reinstall. If repeated, contact service. | | No display | Dead batteries or connection | Insert new batteries. Check polarities. |
(depending on your specific unit's requirement) into the bottom compartment. Alternatively, some models support a 6V DC power adapter or USB-C cable for battery-free use. Cuff Preparation
