02-08-2011, 03:16 PM
I am using this little set sold by Conrad (part number 248718 - 62) in Germany since years ![[Image: 248718_GB_00_FB.EPS_250.jpg]](http://www.conrad.de/medias/global/ce/2000_2999/2400/2480/2487/248718_GB_00_FB.EPS_250.jpg)
The little PCB is put on a gondola or flatcar with a battery and sensor at a wheel set. The speed is transmitted with the three LED to the black box you keep in your hand. The speed is displayed in km or miles per hour. The PCB has some jumpers to set the diameter of the wheel of the flat car. It works without trouble since years.
ps. I have an older version without the power supply. My black box needs another battery.
The little PCB is put on a gondola or flatcar with a battery and sensor at a wheel set. The speed is transmitted with the three LED to the black box you keep in your hand. The speed is displayed in km or miles per hour. The PCB has some jumpers to set the diameter of the wheel of the flat car. It works without trouble since years.
ps. I have an older version without the power supply. My black box needs another battery.
Reinhard