If you are considering the ICE, get the Supernova Competition instead, it's a better charger.. firmware is almost identical, but the supernova has a few more features (20A discharge, backlit screen, etc)...
I find the controls on the supernova way easier to work with than the jog-dial on the ICE (which is easy to fumble settings with)...
I've used both, and own the supernova comp
It's probably a few dollars more, and comes with the temp sensor.
James