[vegadw]

This project is neat and OP did a good job, but I think the interest in Geiger counters among hackers needs an update. The Geiger kit on Adafruit (Yes, I know that makes the cost a lot higher to be from them instead of Ali, but I think is a good baseline for "finished good" price) is $99.

Meanwhile, Raysid or Radiacode let you do full on gamma spectrometry, for about 2.5x the price.

And, like, yeah, 2.5x the price. I'm not oblivious to that being significant, but to me it's sorta like an GT1030 with DDR4 - it's about $100 or you could get an RTX 3060 for a bit over $300. Like, you might have a use where you ONLY need a cheap display card, but there's a reason LTT calls the 1030 eWaste from the factory. Similarly, you might get enough out of the Geiger or it might do something the Radiacode doesn't for you but for most hobbyist, I doubt it.

[BetterGeiger]

I gave a more detailed comment already, but price/performance is not a simple two axis thing. No consumer grade gamma spec device measures high dose rate which is needed for emergency use. Depending on the intended use case something lower cost than radiacode might make sense. For example the radiacode 110 ($400) has the same volume and type of scintillator, with very high sensitivity, as the better geiger S2L ($200), so both are good for handheld search for radioactive objects, but S2L has something like 30x higher maximum dose rate range which makes it more capable in emergencies, whereas the 110 has Bluetooth, mapping, and gamma spec... Which are very fun for hobbyist but have little true "practical" real world value. Different interests and different budgets would point people in different directions.

[thadt]

Yeah, even in the non-consumer grade space, you're still likely to want to include something like a calibrated GM tube in the lineup, for measuring dose after the scintillators are saturated.

[tavavex]

> Like, you might have a use where you ONLY need a cheap display card, but there's a reason LTT calls the 1030 eWaste from the factory. Similarly, you might get enough out of the Geiger or it might do something the Radiacode doesn't for you but for most hobbyist, I doubt it.

I think the biggest difference here is that GPUs are fairly general-purpose devices. Even if you only need one as a cheapest possible way to output something to your monitor, it's easy to imagine how that might change and why you might as well future-proof your setup.

The other thing you didn't mention about why a 1030 is manufactured e-waste is in large part the competition from the used market. You can get equivalent functionality for a few dozen dollars, so buying a brand new 1030 as an individual makes no sense. This isn't a problem in the specialty radiation device market.

The thing is that most people probably don't buy Geiger counter modules or devices because of a burning need to do some specific tasks, like you would with GPUs. I'll bet that most people buying the Adafruit kit are getting it as a novelty, or for educational purposes, or to just have something reporting the background radiation around them out of curiosity. Because of this, price is the most important factor for these groups.

I've never heard of Radiacode, and looking it up, it seems seriously impressive - especially the portable gamma spectrometry that you mentioned. But I also know that it's a very niche device, and most people who would shell out $250+ for this need it for chemistry projects, exploring irradiated areas, evaluating radioactive items and so on. It's not a lot of people, considering that if you just want something to give you a readout, you'll get the <$99 product, and if you need it occupationally, you'll already have received a professional device.

[vegadw]

Maybe? I feel like the most in group of people who do have the discretionary income to toss $100 at a Geiger counter for fun also have enough to toss $250 at it and would rather given the extra utility. I might be wrong though. And it certainly depends as the $100 line drops. If it's $50 for a Geiger, that's a lot closer to "I don't care money"

I had someone tell me a while back $100 is an adult $20. As in, what you saw as a kid as $20 of fun but factoring in how long it took you to get the $20, it's about the same. I know that math will be massively variable, but I like the idea of equating kid brain money to adult money for "toys" like this. A $5 toy vs a $40 toy, as a kid, is a big deal. A $40 toy vs a $70 toy almost isn't, because they're both already "expensive".

I suspect for most on HN, their toy-money equivalence leans to the Radiacode or equivalent being the better buy.

[ajsnigrutin]

Let's be fair, adafruit is expensive.

https://www.aliexpress.com/item/1005004551394154.html this is 32eur

+ ~5eur for an esp32 board and some wires

+ http://docs.espgeiger.com/output/webportal

This gives you a measurement node, with mqtt support, online data export and a web interface.

For ~40eur all together, it's still very cheap.

[renewiltord]

Yeah there’s definitely a price and price/performance thing with these. You’re right in that I’d rather have the Radiacode.

I do like my Flipper for how adaptable it is but then end up using it to copy RFID tags as primary purpose.

[zamadatix]

Tangential, but this is the right crowd to know: what's the best digital visible light spectrometer in that kind of price range?

[bsjjdjs]

Which is the best inexpensive Geiger counter and which features probably don’t matter if you want to stay safe?

[BetterGeiger]

For staying safe you want high max range and energy-compensated dose response. No ultra cheap devices offer that, mine is the closest thing on the low end of price, but consider me biased... If anyone finds something to contradict that feel free to share, because it would be new info to me. Then there is the second hand market, for example mrad 113 is a good device that can sometimes be had for a reasonable price, probably there are other pro grade dosimeters on ebay for a reasonable price but I don't know follow that market closely.