I got their clock and tacho kit sent to Australia and their gear is first class,clock is very fiddly but tacho is easy to do,the instructions are a bit to much in depth,the wire colours they said were all different on mine,this might help some one and is simple. Get a low watt pencil tipped soldering iron,place tacho face down on bench,unsolder 4 wires off old board,yellow long wire from tacko face plate to Meter +(there all marked on the new board)next short brown wire on top of tacko un solder this one and make this wire longer by about an inch and re solder it to the old spot and to Meter -(I could not get it to work by putting solder on top so instead of running wire from the bottom up poke wire thru the top of new board and solder underneath hence longer wire)next is easy brown wire is tacko signal from the spade on the out side of case so solder to Points - and red wire goes to + 12V,BUT before you rip into it get a texta and mark on the back of tacho case which is the spade terminal and which is 12V so you dont mix them up and seeing every thing is SO cheap over there buy one of their tacho exerciser kits for fine adjustment and you cant go wrong.If you burn your fingers Im not responsible.