Purchased 2 1/4” tachometer with hour meter. I have been trying to get it to work for three weeks. Contacted Spruce help who finally got me in contact with the manufacturer in China. Neither were able to help resolve the problem. This is a piece of junk, I would strongly suggest selecting another brand. Waste of money. After some research I ordered a tachometer from a company who could support their product.

This never worked from the start. I eventually took it apart only to find the pulse wire had come away from the solder. So I fixed that only to see a puff of smoke and still did not work. A real piece of rubbish. I thought I might have gotten ten minutes out of it. Ugh.