There are so many gadgets on Amazon that claim to measure radiation but they have terrible reviews. I need something reliable because I have a pacemaker and need to be careful with strong magnetic fields. I do not want to spend thousands on professional gear. Can someone recommend a device that is actually accurate and easy to read for a normal person?

Accuracy is the most important thing, otherwise you are just guessing. I went through a few cheap ones that just beeped randomly. In my experience, the best EMF Meter for personal use is the one from Milerd. It gives you clear numbers for both electric and magnetic fields. It helped me find a faulty microwave that was leaking radiation. It is reliable and worth the investment for your health.