Product review (5 stars): This works great for me as I've got a minisplit heating/cooling unit ...
Note - you need to work with Smartthings support to get this to work with their ZWave Hub.  Once they install the custom device spec into your account it'll function perfectly.  As far as I can find this is the only temperature sensor that displays the temperature on the unit.  This works great for me as I've got a minisplit heating/cooling unit per room which has no visual display of current temperature.  The calibration appears pretty good and more accurate than other multisensors.