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Anhui Huami Healthcare Co.,Ltd. 

network environment (e.g., public WIFI) when it is logged in, upgraded, and unbound. 

8.7.2 In the case of device binding, other mobile phones can not search for the device via 

Bluetooth. They need to be unbound before they can be found and bound by other mobile 

phones to ensure the security of device binding. 

8.7.3 In the case of an unbound device, although other mobile phones can search for the 

device via Bluetooth, they must be bound by touching the device. 

 

9.  Take ECG recording using the Midong Health Watch 

9.1  Before taking each recording: 

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Disconnect headphones, charging cable, or any other connected devices. 

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Clean the two electrode sensors with an alcohol-based sanitizer. 

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Make sure the connection of the Midong Health Watch and the 

Amazfit Health app

 

9.2  Measurement 

9.2.1 Wear the ECG Recorder wristband on the left wrist, avoiding the carpal bone.    (If 

wearing on the right wrist, follow the instructions by swapping left and right) 

9.2.2 Adjust 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 ensure that the rear electrode sensors are in contact with the skin of your 

left wrist for the entire duration of the recording. Remain still while recording, and the 

Midong Health Watch, forearm, and hands should not move while recording. 

 

The recording takes 60 seconds offline or 240 seconds online, as directed by the user. 

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30 seconds offline recording: the ECG data is temporally stored on ECG Record 

memory before transmitted to the 

Amazfit Health app

 and Cloud servers. 

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60 seconds online recording: The ECG data is transmitted to the 

Amazfit Health app

 

and Cloud servers in real-time. 

 

10.  Once the recording is finished 

Immediately after the recording is complete, the software automatically saves the ECG 

data.   

The ECG data displays for review. The review screen allows you to scroll through the 

ECG by swiping your finger across the screen, and you can pinch and zoom to scale the 
ECG. There are also options to edit user’s information, review previous or next recordings. 

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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