Was at ThermoWorks site the other day and found "Probe Wipes".
They are in little packets like the hand wipes.
Don't know it they are any different than the hand wipes, but thought I'd give them a try as they are cheap - $2.50/100.
Scheduled to arrive Thursday.
Will see how they work on the RTD.
Don't see the need for them on a regular probe, since cleaning them is easy.