I got one of those Stanley FatMax TLM 100 laser measures for Christmas, and I've started to calibrate it. So far I've tested it at 3 ft., 6 ft., and 10 ft. It's consistently reading within +/- 1/16 in. versus my 30 ft. Stanley Leverlock steel tape.
Has anyone else tested one? I'm very interested to see what results others are getting. As soon as I get a chance I'm going to check it at 100 ft. on the floor of a basketball court, to avoid big cosine errors with the tape. I have three Stanley 100 ft. tapes of different vintages, and I'm interested, also, to see how they read against each other.
So far this TLM 100 has been very useful and easy to use. I'm startled to see how accurate it is. Stanley only guarantees it to +/- 1/4 in. My gut feeling is that it's the same basic innards as the more expensive versions (mine was $99), but that Stanley either de-rates this one to encourage sales of the more expensive models, or else they don't test the cheap version and leave the extra margin for manufacturing variations. If so, I got lucky.
-- Ed Huntress