Always carry your heart device ID card when attending any event where there may be security screening, such as a school leavers’ ball, concert, or sporting venue. Show the card to security staff before going through a metal detector.
If your device triggers the detector, you can ask for a manual pat-down search as an alternative to a hand-held wand being passed over your device. Security staff are generally familiar with this request. It also helps to go through the detector at a normal pace and not linger near the equipment.