Using a Tachometer sensor.

Hi Dave, 

I have received the tachometer sensor. 
Many thanks. 
Could I trouble you for some guidance on wiring it to the EMCS tachometer. 
The sensor has a two way spade connector, I'm guessing one is a permanent 12V supply and the other the pulsed output, but which is which? I'm also guessing the body acts as the negative for the supply?
Do you have a data sheet or fitting instructions? 

Hi Steve
All correct if we look at the spades as a 'T' the top of the 'T' is the input with a 1 amp fuse please. The upright of the 'T' runs to the tachio. 
On the rotating part that you are using as the focus you need something for it to pick up on that is more than 10mm proud of the moving part. The sensor needs to be 1mm from the pickup focus.