Thats right. Microwaving will not affect human urine, but I still wouldnt recommended it because human urine is bio-hazardous and shoudnt be in an area where food and utensils are involved.

Digital thermometers are not really necessary. Most chain pharmacy stores carry "stick-on" type baby forehead temp strips - which are essentially the same as the temp strips used at the collection facilities. While the strips may not be as accurate to the "nth" degree as the digital units, they are obviously accurate enough to merit continued use by the facilities.

Just sitck a temp strip on the bottle and thats one less item that you have to sneak into the facility.