You really need to talk to the hospital that fitted that fitted the pace maker. They are the only people that will know what restrictions (if any) exist for that model of pacemaker. They also will also understand the medical history of the person wearing the pace maker. This is important since the same model of pacemaker might work differently in two different people. So there is no point trying to second guess the medical experts. That said the only really serious restriction I have every heard in relation to pace makers is powerful magnetic fields such as those produced by an NMR machine.

Do not under any circumstances apply a noise dosimeter to his/her body. There was an incident at the Samsung shipbuilding yard where I worked some years ago when such a device was fitted to the crane operator's torso so as to measure noise levels. He went home early complaining of pains in his chest - never to return. He died that evening. Although the post mortem revealed heart issues there was more than a whiff of acceleration associated with the dosi badge. Korean H&S law is not as challenging as UK - so the investigation here might be somewhat more difficult. Jon

You can get a device that measures electromagnetic fields that the person with the pacemaker can wear and will give them warning if they are in danger from them. It's hard to predict what the fields will be as there will be so many potential sources.

I found this post quite interesting, because some years ago I was diagnosed with an ectopic heart beat, I don't wear a PM or need any beta blockers or treatment but at the time it was a bit scarey. My symptoms only occurred when I was at rest, usually in bed at night when I would feel what I described to my GP (Senior Medical Officer as I was in the forces at the time) as a "Missed heartbeat", but what it actually was, was on occasions at rest my heart, while the right atrium was sucking blood in (To put it in basic terms) was getting a double electrical impulse from my brain and was doing it twice, hence the feeling of delay and release. After going for extensive cardio vascular and exercise intolerance tests which included wearing a heart monitor for 24 hours during which period it recorded 1000 ectopic beats, I was given a clean bill of health, no heart disease, no problem. It taught me a valuable lesson that your heart is a pump that beats any mechanical system hands down, it operates 24 hours a day at a phenomenal rate, it rarely breaks down during it life cycle and is low maintenance. So yes I guess you have to consider what electronics gismos you strap close to it. Congratulations for raising this post, it certainly made me think a bit.