For Android Phone, OS must be 4.4 or above and Bluetooth must be V4.0
For ios phone, iOS must be 8.0 or above and Bluetooth must be V4.0
1. When you open the MeCare app on your phone you need to scroll down the screen to see all of the menu options.
2. The ECG is initiated from the MeCare app on your phone (not from the KAIHAI H66). Have a finger pressed to the contact on the side of the KAIHAI H66 and then start the ECG from the MeCare app. The ECG should then start scrolling across the screen in the MeCare app. If the ECG is not showing a good reading try adjusting how your finger is pressed to the contact on the side of the KAIHAI H66, also try pressing down gently on the KAIHAI H66 to improve the connection of the two contact points underneath (against your wrist).