Review

The Chamber. I wasn't actually going to look into the chamber more, but a radmon.org user was curious, and curiosity got the better of me, so I dug into it - and I'm glad I did! Quite interesting. A little, but not actually quite as I expected. (I have added the high resolution images of this post to the download in the first post of the AEGTest Hound-3699 series.) Under the little metal cap on the underside of the chamber there are more discrete electronics and in the center a long gold plated pin that runs into the chamber. All the markings have been removed like the rest of the ICs. It

AEGTest Hound-3699 Radon Monitor Accessing the 'Admin' menu. The manual states: “Admin: Technician access only (Note: Do Not Click.)” Do not click? On something I bought? Something I own? Really? Give me a big red button that says 'do not press,' and I’m going to press it. If it’s locked behind a PIN code, I’m going to try and guess it. And you, AEG Test — you’ve just fuelled me with the absolute determination to click things, crack things, push buttons and tear them to pieces. That said — I still think this is a decent little unit. So everyone deserves access to the admin menu. If you follow

AEGTest Hound-3699 Radon Monitor Review & Teardown Many high resolution images of the teardown are here. I have been getting to know Radon quite a bit more of late. I manage a couple of sites at work and these are in Radon areas. I have used the Airthings Corentium and also fitted an Airthings View Radon 2989 in the basement of one of the sites. Monitoring is ongoing. I have also been experimenting with Radon a little too – discovering it’s progeny. I have also discovered that many (all?) of my U-238 sources also emit small amounts of Radon, local to their storage and I want to keep an

Yaorea YRG01 I bought another cheap Chinese counter from Aliexpress and I am impressed, especially for the price of £27 shipped to my door. Despite its cheap appearance it actually offers a lot of bang for buck. I haven't looked into it closely, but there seems to be a lot of attention to detail, and I reckon whoever designed this really gave a damn about it. 😄 It came up in suggested products on Aliexpress and I wouldn't have bothered about it if not for the fact that someone reviewed it and posted pictures of its insides. "Okay, a glass tube... Ooh a separate PSU board with a big hunking