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Anhui Huami Healthcare Co.,Ltd. 

that may submerge the device in water. 

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Do not use the device in locations subject to high or low temperatures or humidity. It 

should be used within the temperature and humidity range according to the product label. 

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Do not take recordings in a location where the unit is exposed to strong 

electromagnetic forces, such as microwave ovens or X-rays. 

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Do not use the device while being charged. 

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Connect to a charger with 5V output voltage and avoid charging the device under the 

condition that the temperature is too high or too low.   

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Do not overcharge or over-discharge the device. Charge the device in time when the 

battery power is lower than 25% and disconnect the charging cable in time after 

completion of charging. 

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Disperse any static electricity from your body before using the device. 

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Take recordings as calm as possible. 

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Do not expose the device to strong shocks or vibrations, if the shell is broken, please 

stop using it.. 

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Do not disassemble, repair, or modify the device. 

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Do not take a recording if the electrode sensors are dirty. Clean them with 

alcohol-based sanitizer

 before use. 

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If the portion of the body where the electrode sensor is applied has too much body fat, 

body hair, or very dry skin, a successful recording may not be possible. 

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Do not share the device with another person to avoid cross-infection 

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If the device is not to be used for a long time, please fully charge the battery and 

recharge it every 2 months to prevent the battery from over-discharging. 

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Keep the Bluetooth connection between the device and the mobile phone when 

recording. 

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Make sure the mobile phone has sufficient memory storage. 

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When APP is registered, the password should be at least 8 characters in length, and 

contain two or more characters of uppercase characters, lowercase characters, base 10 

digits and non-alphabetic characters. 

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Avoid using commonly used passwords to prevent passwords from being guessed 

and maliciously logged in to reveal your personal privacy data. 

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Upgrade firmware and APP in a secure network environment as much as possible. 

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The MAC address is the unique identification of the device. Please do not disclose 

the MAC address of the device to others. 

 

4.  Warnings 

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This device is not designed or intended for a complete diagnosis of cardiac conditions. 

This device should never be used as a basis for starting or modifying treatment. 

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This device records heart rate and heart rhythm only. 

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This device does not detect or measure heart rate, heart rhythm, and heart waveform 

changes. 

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Do not attempt self-diagnosis or self-treatment based on the recording results and 

analysis. Self-diagnosis or self-treatment may lead to deterioration of your health. 

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Users should always consult their physician if they notice changes in their health. 

Summary of Contents for JHS20W2

Page 1: ...Anhui Huami Healthcare Co Ltd User Manual Version 0 2 Amazfit Health Watch JHS20W2 Anhui Huami Healthcare Co Ltd...

Page 2: ...gned to capture a user s ECG data and transmit the data via Bluetooth to an iOS or Android mobile phone which transmits the ECG data over the network to the Cloud servers The device consists of wristb...

Page 3: ...re the device with another person to avoid cross infection If the device is not to be used for a long time please fully charge the battery and recharge it every 2 months to prevent the battery from ov...

Page 4: ...produce is not allowed to be used together electrosurgical instruments To keep the device away from fire do not heat it otherwise the internal battery may explode 5 Warning MR unsafe This device is N...

Page 5: ...Bluetooth 4 2 Android Operating System versions 4 4 or later iOS 10 0 or later 8 2 Unpack the Midong Health Watch Remove the Midong Health Watch from the box Midong Health Watch 8 3 Charging Charge th...

Page 6: ...tion if necessary 8 6 Connect the Midong Health Watch to mobile phone Turn on the mobile phone Bluetooth and connect the Midong Health Watch following the instructions presented when opening the Amazf...

Page 7: ...just the wristband to the appropriate tightness so that the electrode sensors contact the skin 9 2 3 Rest your right forefinger on the front electrode Press your right forefinger with enough force to...

Page 8: ...l profile open the menu bar by pressing the button on the upper left corner and then click on the portrait area In the personal profile page nickname sex date of birth height and weight can be modifie...

Page 9: ...to change the network environment switch to WiFi 4G 15 Specifications Performance characteristics ECG Channels Single Channel Input Dynamic Range 10 mV Peak to Peak Memory length Practically unlimited...

Page 10: ...it could result in improper operation If such use is necessary this equipment and the other equipment should be observed to verify that they are operating normally In addition to the accessories prov...

Page 11: ...8 kV contact 15 kV air The table should be wood If the table is covered with synthetic material the relative humidity should be at least 30 Power Frequency 50 60 Hz magnetic field IEC 61000 4 8 Enclos...

Page 12: ...y Use only the transducers listed in Table 4 to minimize the chance of performance degradation due to these types of electromagnetic phenomena 17 3Recommended Separation Distance Table 3 provides guid...

Page 13: ...quipment could result 18 Equipment symbols Type BF Applied Part WEEE Properly Dispose of Electronic Waste Consult Instructions for Use User Manual Manufacturer Temperature Limits Operational Relative...

Page 14: ...t generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no gua...

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