What are the main functions of the product?
향후 CE Mark 인증 받은 후 채워야하는 부분입니다.
What certifications does the product have?
Korea Medical Device Manufacturing Certification and CE (for sales in the EU)
What age groups is the product targeted for?
Adults. Please keep out of reach of children.
What languages does CART support?
We support English and Korean.
How can I turn on the device?
No further action is required to turn on CART.
How does the product work with my mobile device?
CART uses Bluetooth to transmit data to your mobile device. It cannot work properly without a Bluetooth connection.
Can I use this product with a pacemaker?
CART is not recommended to those with a pacemaker since accuracy of the ECG records cannot be guaranteed.
Is the device waterproof?
Yes, you may wash your hands or work out while wearing this ring-shaped CART. As CART is IP58-rated, you may wear it for a long time even in water at a depth of more than 1 meter.
Is the device anti-allergic?
CART is manufactured in compliance with ISO10993-1 (biological evaluation), an international standard applied to medical devices. However, if the finger on which you wear the CART becomes red or develops any skin irritation, stop wearing the CART immediately. If the symptom persists without wearing the CART for 2-3 days, you should go and see a dermatologist.
Does the device work near sources that give off high voltage?
This product is designed and manufactured in compliance with IEC 60601-1 and IEC 60601-1-2, which are the international standards applied to medical devices. It is recommended to use CART under normal conditions of operation.
How should I manage my CART?
As any foreign matter stuck in or on the ring-shaped body may compromise the quality of the signals collected, please keep it clean by wiping the body thoroughly with a soft cloth. CART may be damaged if washed with hot water or a detergent.
Safety and Security
What personal information does CART require and collect?
When signing up for an account, you are required to enter your email, name, gender, date of birth, region, height, and weight.
While being used, CART collects your ECG and PPG data, which are then automatically sent to your registered doctor.
What kind of security system do you apply?
For secure data communications between the server and a client, all information is sent/received securely on a link encrypted with the SSL protocol. The user's personal information to be stored is encrypted with AES256.
Who is responsible for the protection of personal information?
What else does CART collect?
In addition to personal information, CART collects the information on your location for a Bluetooth connection, which is required to run on Android (OS).
Warranty and Refund Policy
May I know more about your warranty policy?
The warranty period is 1 year from the date of purchase, and we also guarantee a 2-year period of product use.
Is this device refundable?
Any CART that does not work as intended can be exchanged or refunded within 30 days from the date of delivery.
Purchase of CART
What is in the package of CART?
The package (box) of CART contains the main body of CART, a cradle, a USB cable, and a User Manual (IFU).
In what countries is CART available for purchase?
Currently available in the UK, Europe, and Korea.
In what countries can CART be used?
It can be used in the country of purchase.
What devices and operating systems can CART be connected to?
The minimum system requirements to work with CART: iOS 10.0 (iPhone 7), Android 6.0, and BT 4.1.
Where can I purchase CART?
You can purchase CART from www.i-skylabs.com.
What methods of payment can I use to buy CART?
In Korea, you can pay by credit card, social-pay services, or cash (wire transfer).
Is it possible to have a custom-size ring right after I order a CART?
Once you order a CART, you will receive a sizing kit to measure your ring size. With the sizing kit, measure and verify the size no. that fits your finger. Then enter your size no. to the website to have your custom-fit CART delivered.
What if I want to cancel my order?
You may cancel your order from My Page on the online store.
Can I track the delivery of my CART?
You can track/view your delivery status on My Page on the online store.
How to use CART
I have ordered a CART. How can I choose my ring size?
2. Try each one on to find the best ring size for your finger; the one that you can slip smoothly on your finger is recommended.
(Please do not choose a size that is either too tight or too loose)
3. Since the thickness of a finger may be affected by the body temperature, measure the size when your body temperature is not too cold or too hot.
4. If you find the right-sized ring, wear it for 24 hours to make sure there is no discomfort caused by the ring in your daily life.
5. Choose the most comfortable size and enter the size no. to the website.
How can I register my CART?
At the top of the page, you will see a list of recently-connected devices (newest first); all the previously registered devices are included in the list. A blue dot on the left of the CART icon indicates it is the currently-connected device.
B. Scan the QR code of your CART or enter the serial number (included in the package)
C. The initial Sensor Setting starts for data collection. Once the settings are confirmed, then the registration of your CART is complete.
What is the most suitable way to wear CART?
How can I charge the battery?
How can I check the battery level of my CART?
How to use the App
I have received the CART box I ordered. How can I download the CART app?
How can I create an account?
How can I manage the information on my doctor(s)?
Tap Settings > My Doctor to manage your registered doctor(s).
About ECG and PPG
What information can I receive by wearing CART?
PPG, an abbreviation of photoplethysmography, is a pulsating signal that uses the optical properties of biological tissue to sense and display the changes in the volume of blood pumped by the heart.
May I know how it measures the ECG signals?
1. Make your hands moist.
2. Wear CART so that the base knuckle of your finger comes into contact with its metal part.
3. Gently cover the metal surface with the fingers of the other hand.
4. Do not move or speak for 30 seconds during the measurement time.</instructions>
1. Do not press on the metal surface hard.
2. Cover as much of the metal surface as possible with the fingers of the other hand.</precautions>
May I know how it measures the PPG signals?
I can see only minor ECG signals from the measured result. Why is that?
For ECG, it measures the microscopic electrical flow of the body. For this reason, please keep your hands moist for the measurement so that the CART can accept the electric flow well.
I can see only minor PPG signals from the measured result. Why is that?
PPG is a pulsating signal that uses the optical properties of biological tissue to sense and display the changes in the volume of blood pumped by the heart. The amplitude of the PPG signal may vary if the user moves during the measurement; it can also be affected by a change in pressure between the finger (wearing the ring) and the ring body, or user-specific characteristics.
How can I improve the quality of the signals being collected?
The quality of the signals may also be affected if the ring is rotated or moved during the measurement or the pressure between the finger and the ring is not constant. For this reason, in order to ensure collection of quality signals, please make sure that the sensors face the palm side, your movement is minimized, and you wear a ring that fits your finger.
In the case of ECG, maintain a certain posture as described in the precautions on the self-check guide screen to collect good ECG signals.
How can I do a self check?
2) Tap Start, and then it will start the measurement in 5 seconds. Before the measurement starts, use the fingers of the other hand (without a CART) to gently cover/contact the metal part (bottom of CART) as shown in the figure below and measure it for 30 seconds.
3) When the self-check starts, the blue LED on the top of CART lights up for 2 seconds. After 30 seconds, the blue LED lights up for 1 second, indicating your measurement is complete.
4) While the measurement is in progress, the progress bar is displayed at the top of the screen. Do not move until the progress bar reaches 100%.
5) When the measurement is complete, the measured results appear on the screen. Press the Back icon at the top left to return to the main screen.
What is the subscription service?
By signing up for the subscription service, you may receive a customized medical report based on your data stored in CART every month, every 3 months, or every 6 months.
How do I sign up for the subscription service?
It is temporarily being provided for free, as part of the product launching event by the end of December 2020.
How can I store the CART while it is not in use?
If you are not going to use your CART for a long time, separate the CART (body), cradle, and USB cable before storage.
Can I reuse the sizing kit?
The sizing kit can be reused multiple times and can be shared with others as well. Thus, if you already have your own or someone else's sizing kit, you may use it to measure the ring size and enter the size no. to the website without having to wait for a new sizing kit. In this way, you may have your custom-fit CART delivered faster.
How can I make a connection to a different CART?
1) From the device list, choose and tap a CART you want to connect to.
2) A blue dot is marked next to the number of the selected CART, and the representative device's name is changed.
How can I delete a CART?
My CART is experiencing a problem. May I request a repair service?
Due to its unique structural design and manufacturing process, a completely-assembled CART cannot be stripped down. For this reason, no repair service is provided.
How can I edit my membership information?
How can I reset my password?
2) Enter your registered email address following the instructions, and then an 8-digit verification code will be sent to your email.
3) Check the verification code in your email, and enter it to the verification code field on the CART screen.
4) Enter a new password and tap OK to complete the change.
How can I log in with a different account?
2) Log in with a different account by typing in the corresponding email address and password.
Is there a way to limit the data usage?
If you want to use only Wi-Fi, enable the toggle switch of "Use Wi-Fi Only" by swiping it to the right.
Report & History
What data can I see on the 'Report' page?
What data can I see on the 'History' page?
What does the AF burden mean?
It shows how long the AF lasted during the analyzable time.
What does the analyzable time mean?
This is the time during which good and analyzable signals above a certain level were collected from the CART worn on your finger.
How can I make use of the daily, weekly, or monthly statistics? Any tips?
Daily statistics are useful when you need to check for the IHB ratio per time slot. You can check in which time slot of the day you had IHBs.
I received a message saying, "Not working while charging." What should I do?
CART does not collect any signals while being charged. Take CART out of the cradle and perform the self-check again.
Which hand should be moistened before doing a self-check?
Make both hands moist (regardless of which finger it is to be worn on).
I am trying to do a self-check. Is there a certain finger you recommend to contact CART to obtain better results?
The finger that is the most comfortable for you to wear your CART for measurement
I received a message saying, "Tap Add a device to register a device." What should I do?
This message appears when there is no registered CART in the logged-in account. Go to Settings > My Device, and register your CART.
I received a message saying, "Bluetooth is disconnected." What should I do?
This message pops up when CART and your mobile device are disconnected. Make sure that CART is located within 2 meters from your Bluetooth-enabled device. The Bluetooth connection is automatically (re)established as soon as "Search for nearby Bluetooth devices" is performed.
I received a message saying, "Wear CART properly." What should I do?
This message is displayed when the CART is poorly worn (on your finger). Please wear the ring properly.
I received a message saying, "Bluetooth is turned off. Please turn on Bluetooth and restart CART." What should I do?
You receive this message when the Bluetooth of your mobile device is disabled. Please enable the Bluetooth and then restart the CART.
I received a message saying, "Please check your WiFi or Cellular network connection and try it again." What should I do?
This message appears when there is no network available. Please activate the network connection and try again.
I received a message saying, "There is no battery. Please change your CART." What should I do?
This message appears when the battery level of CART is low. Please use again only after charging the battery.