Now that's a toy you don't stumble across very often! Not sure what I'd do with it, but others may have a use: https://www.radiacode.com/
Radiacode – Portable Radiation Detector, Dosimeter & Spectrometer

Radiacode is a fast, portable radiation detector, dosimeter, and spectrometer with real-time analysis. 20× faster than Geiger counters, it identifies isotopes, tests food for contamination, and supports research and safety.

@cstross The tab looks like getting no smaller fast: I fired up the old iPad (having charged it up for a couple of hours), managed to get onto the Apple Store, and the dratted application requires iOS 17 or later. Poor old iPad is stuck at 12.5.8. (Mini-2), but at least I've now got the endoscope software to install and run (so I can explore the wiring under the floorboards without major upheavals). I'll charge the bigger iPad later and see what level that can take, but it may mean new hardware.

@cstross As I suspected: Big iPad won't even _connect_ to the Apple store to check for upgrades. Oh well. 3:O(>

<Gets wallet out again>

The flamethrower is off the shopping list _again_. 3:O((>

@Cadbury_Moose You're going to need an iOS device with a 64 bit CPU, so less than a decade old! (If you'd let me know last week i could have sorted you out …)

@cstross I suspected as much - but I _Like_ the old iPhone 7, and don't need the bells, whistles, gongs and built-in custard pie thrower of the newer models.

I'll probably just get another used iPad - 2022 should be recent enough to run it, and the better camera may be worth it.

3:O)>

(Last week I didn't know I needed a gamma ray spectrometer; then I met Dermot.)