Digital Wrist Blood Pressure Monitor Portable tonometer health care bp Blood Pressure Monitor meters sphygmomanometer

Using the oscillometric blood pressure measurement,Accurately measure the blood pressure LCD digital display,legible Intelligent pressure WHO warning message function Double mode,each of the 99 set of measurements of memory No operation in 1 minutes automatic shutdown An irregular heartbeat measurement. The clock feature The overpressure protectionfunction. The product includes: sphygmomanometer * 1, instruction manual * 1, packaging bag * 1 (foam bag) Model: RAK-289 It has no voice function,Without box.

The error code represents: Er 1: Due to rapid air leakage or weak pulse signal (please check the wrist strap, tie it up, and test again) Er 2: Due to noise (please do not move or speak, first clear the air pressure inside the cuff) Er 3: Abnormal blood pressure. (Please check the position of the cuff and re measure according to the standard posture) Er P: Unable to apply pressure or pressure too fast. (Check if the cuffs are too tight or loose, check if the trachea is blocked) HI: Displayed in the low-pressure area, indicating that the pressure exceeds the limit. (Measure again in standard posture, do not move or speak)

Troubleshooting: 1.If there is no display on the screen when the on/off button is pressed, please confirm if the battery is new. 2. If it is impossible to measure or the reading is too high, please re measure with the correct posture 3.If the measured blood pressure is abnormally high or low, please wear a wristband correctly, relax, and then re measure. During the measurement process, please remain quiet and do not speak. 4. If pressing the ON/OFF button the pressure is not applied but the reading still appears, please turn off the sphygmomanometer first and then turn on the measurement. 5.If the blood pressure measured each time is different and the reading is too high or too low, please relax first. Because in a tense state, the results of each measurement will constantly change, it is recommended to take a deep breath and calm down before taking the measurement.