I've had the LM-1 unit about 2 years now. Installed and flawlessly functioning for all of those 2 years as well.
It is an excellent unit that has many capabilities that other units do not have. The completely computer programmable inputs and outputs make it bar none the best datalogging unit for the money.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.