Use Instructions

F401-01(A-190102) Sky Labs Inc.
CHAPTER 1. Device description & Intended use
CART-I consists of devices, including CART-Ring and CART-Cradle, CART-App(Mobile Application) for general users, and
CART-Web(website) for doctors.
CART-I provides photoplethysmography(PPG) signals to measure heart rate(HR) and to identify Atrial Fibrillation or its
burden, and electrocardiogram(ECG) signals to offer supplementary information to doctors.
A part of CART-I, CART-Ring is a ring-type wearable device, which collects(or records), stores, and transfers
not only PPG signals but also single-channel ECG signals.
CART-Ring operates continuously to collect only PPG signals - referred to as "Background-Check" within this submission
- without user intervention, while collecting both PPG and ECG signals - referred to as "Self-Check" within this submission
- by users' intention.
Inside of CART-Ring, a Lithium Polymer battery can be recharged using CART-Cradle, operating based on the wireless
charging technique.
CART-I utilizes an iOS-based CART-App, which is installed on an iPhone, to obtain PPG and ECG signals from CART-Ring.
After obtaining both signals, CART-App transmits those signals to a cloud server to get results, such as an estimation of
HR and an analysis of Atrial Fibrillation or not.
CART-App offers the statistics, including the number of checks, the analyzed results, and etc., with graphs and lists to
users; Data offered to users are synchronized to their own account.
After connecting to users, doctors get more detailed information from a cloud server for their connected users than
those for general users using CART-Web.
CHAPTER 2. Packages
NOT including the mobile phone to install the application, CART-app and adapter.
You’ll additionally need the followings to operate the device of Sky Labs Inc.
 mobile phone : >iPhone 6, >iOS10.0, BLE(BT 5.0)
 CART-App is available in the Apple App Store.