Radex ONE geiger counter

There is a new, cheap and practical geiger counter on the market, it’s Radex ONE from Quartarad.com.
The Radex ONE uses SBM-20 GM tube, which is very sensitive and can detect beta, gamma and xray radiation.
You can display 3 different values on the display : uSv/h , dose in uSv and CPM.
It has sound alarm which is adjustable from 0,10 to 1,00 uSv/h and also vibration alarm.
It can measure from 0-999uSv/h . which is enough for day to day use in the environment.

Unit is powered only by single AAA battery, and due to good engineering, the unit can stay ON for 6 days straight until the battery is depleted.
There is also possibility to connect the unit to PC via USB.
It can send data to the computer and with the software from Quartarad you can save graphs, change settings of the unit and upgrade the firmware.

Here is a video review of the unit.

If you want to upload the data to radmon.org,
you can use my application: diskDOWNLOAD

SWAT4 Server Browser Alternative v1.76 released

swatHello my SWAT4 friends and happy new year 2016,

New version of SWAT4 SBA was released (v1.76) .

Adding of new servers was fixed, it was damaged by my web provider 4 months ago when they upgraded the system and told no-one…
However the issue is now resolved and you can add your servers anytime.

Also ability to user proxy servers was added because of several requests.

You can update using automatic update or by clicking here : diskDOWNLOAD

Nokia 3310 Geiger Counter


So I found an old Nokia 3310 in trash at work, seems like a waste so I took it home and re-purposed it 🙂

I thought that I can put in to the chassis some of the displays that I use for arduino projects but I found out that the 3310 display can be used with arduino and the implementation is very easy due to the fact that the display has metallic pins.
After connecting the display with arduino I started to wonder what else can be done.
So one thing led to another and thus the Nokia Geiger Counter was born, if you are interested in schematics please click read more.



Geiger Counter + Gamma spectrum analyzer under 10€

999-20005P1The title of the post says it all.
But it might be very hard to imagine to build such complicated instrument with budget under 10€ but it’s possible, kind of.

I came across a circuit scheme that seemed easy to build but it was intended to be used with 8Bit A/D converter (original article).
This converter is used with parallel (LPT) port which can’t be found on modern computers.
Also the 8Bit converter offers only poor resolution of 256 levels of energy and it is hard to calibrate.

The original cuircuit consists of 3 sections, Detector, Converter & power supply.
And I decided to make it alot more accurate and a lot more easy to build.


SWAT4 Server Browser Alternative v1.69 released

swatHello my SWAT4 friends,
I had re-build the whole query engine again and searching for servers takes about 3-5 seconds instead of 30-90 seconds..

The software was only lightly tested but works on Win8 and Win10, so if you encounter any issues please let me know asap at my e-mail. (contact)

You can update using automatic update or by clicking here : diskDOWNLOAD


RTPC v6.90


New version of popular picture compressor is released.

This time the changes are so vast that I thought about releasing it as version 7.
Let’s have a look at the highlights of this version :

– improved resize procedure 1550% faster (on i7 cpu)
– multi compression 2-15x faster ! (depends on resize type and number of CPU cores)
– optimized for multi-core CPU’s
– automatic picture type detection
– compression graph 2-8x faster (depends on number of CPU cores)
– multi compress progress display (done/all)
– multi compress error reporting (when bad file format etc.)
– fixed “doubeled items” issue when using directory selection
– fixed several memory leaks

The application is here free for DOWNLOAD