This listing provides a way of paying $30 FOR THE ASSEMBLY OF OUR MODEL TRAIN SPEEDOMETER KIT.   DO NOT BUY THE UNLESS YOU ALSO BOUGHT OUR SPEEDOMETER KIT.  We have included several pictures of an assembled speedometer so you can see what it looks like.  It is fully tested and will work right out of the box after you install the software.  

You are just paying $30 to me to assemble your speedometer kit that you already purchased.

Here is the link to the speedometer kit:

Thanks.