Fromeco now sell the TNC tach. Their website is fromeco.org. Click on product and then on Tachometers.

They have improved them on there last batch and they are better than any other on the market

I have had the improved TNC tach from Fromeco for more than 7 months now. You can also order it from [link=http://www.donshobbyshop.com/]Don's Hobby Shop[/link]

they have made changes to the tnc and its more accuret and will work up to 6' to 8' away they made these changes in the last month

I have one of the first batchs of the Fromeco tachs, and have compared it to the original tach with good results. I've gotten good readings from 6', but being somewhere around 3 or 4 feet work better.