Relax for at least 5 minutes before taking a measurement, as recommended by the CDC .
The "L" likely designates the language version . The RAK283L typically supports multiple languages or specific regional display requirements, while the RAK283 may be English-only.
(for regions without local distributor):
To ensure your safety and the accuracy of the device, please read all the information in this section before using the RAK283.
: 4 x AAA alkaline batteries or a 5V Micro-USB power adapter
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The RAK283 Blood Pressure Monitor is covered by a 2-year warranty. For more information, please visit our website or contact our customer support team.
The top number, measuring blood vessel pressure when the heart beats.
Press to turn off the monitor. If left idle, the device will shut down automatically after 1 minute. Understanding Your Results Reading the LCD Display
Check that the cuff is applied properly and the air tube plug is inserted securely into the air jack. Try again. Inflation pressure is too high or cuff applied too loosely.