Budget thermal camera setup for ghost hunting—does it actually work?

I'm thinking about getting into ghost hunting properly, and everyone seems to recommend thermal imaging. But the decent cameras are £800+ which is proper money. I found a cheap thermal attachment for smartphones (about £120 on Amazon) and was wondering if anyone's actually used one of these?

Is it worth the investment or am I wasting money? The specs look reasonable - says it can detect down to 0.1 degrees Celsius variation, which sounds impressive. But I'm not sure if smartphone-based thermal is just gimmicky tourist tech.

Also, what else would you recommend for a beginner kit? I've got a decent torch already, but thinking about investing in:

- EMF metre (£40-60)
- Digital thermometer (£15)
- Maybe a decent video camera for backup

Total budget around £300-400. Thoughts?

The smartphone thermal attachments are a bit gimmicky, if I'm honest. Worked with a few, and the image quality is underwhelming compared to even mid-range dedicated thermal cameras. That said, for £120, it's a laugh and might capture something. Don't expect to revolutionize your investigations with it though.

I'd recommend looking for used FLIR cameras on eBay - you can sometimes find older models for £300-400. They're infinitely better than smartphone stuff and actually useable for proper analysis. The investment is worth it if you're serious.

Skip the thermal for now, get a proper EMF metre (FLIR makes decent ones around £80) and an infra-red thermometer. Thermal imaging is nice-to-have, not essential. Better to have solid basic kit than one fancy gadget and nothing else.

Total budget around £300-400

That's actually reasonable. I'd suggest: EMF metre (£60), thermal thermometer (£30), battery pack (£40), and a decent lamp (£50). Leave £120 for the phone attachment if you want to experiment. Start basic, upgrade once you know what you actually need.