The Mini Measure Revolution

Trumeter website says this has a 25cm wheel - it's not correct. It's an 8cm wheel. Very hard plastic wheel needs a clean yet somewhat porous to be really accurate (slips just a bit on dust or material on smooth hard floor). The higher up model looks like it wouldn't have this problem.But the display is large and easy to read, and the switch between inches, yards, meters, etc. is very nice to have. The handle seems sturdy enough. It will due for what I need it for (new build low voltage wiring estimates).

This is a disposable device. No way to change battery. It says 15 year battery life. I've had min 2 or 3 and used it about six times. I'm about to break it open to see if I can somehow change it.