HELP. Substituting

I'm making a contraption much like the number1 device that has a bladder and a tube with a release tab that you pull off to release the urine. Mine is with a travel shampoo container, and some fish tank tubing. Everything will be thoroughly cleaned with hot water and soap, and then FLUSHED FLUSHED FLUSHED to clean out any impurities with bottled water.

I have questions about keeping the urine at a good temperature. I plan on getting a heating pad for the urine to stay hot...but how should I keep it on the container so it doesn't overheat? I will be driving there by myself, so I can employ many methods of heat management while in the car...such as a container full of hot water to put the urine container in to keep it warm.

By the way, the test is going to be done at quest labs for probation...last time i did a drug test there it was doctor ordered drug test, nobody watched me, and i'm not sure if there was a temp strip...I know that once I was done with peeing I just put it inside a box and left it there. I didn't hand it to anybody. Im not sure that since theyre sending the results to the health dept. that is doing my probation program, if they'll watch me pee.

So far, I'm going to measure my urines temperature in the container every time i pee and see what the meat thermo says. It has been giving me from 89-92 or so, based on how deep in the metal exposed part goes in. I can't find a digital thermo...wish i had one. I suppose as long as I can find some consistency between what it reads my urine at and what it reads the subbed urine as, I should be fine. I need to find a way to keep it at the right temperature while in the facility though...that's my problem. Perhaps If i put the heating pad between my body and the container which will be next to my dick (it can't be seen there, my pants are baggy), the urine won't overheat all the way. That seems to be the element that's scaring me. If it's WAY too hot, and there's a temp strip on the outside, won't it say that it's too hot?

PLEASE help me pull this off.

I did a test for prob. at quest labs a long time ago- they is someone there that acctually WATCHES...:(

probation will always watch. they're on to all these methods

they look at my dick or what?

I'm a girl but the lady there WATCHED-I mean didn't turn away at all-just looked down there constantly...

Your contraption may work.You will just need to experiment alot to get it right.The temp strips only go up to 100 that is where a digital thermometer is handy.If your not being observed you can blow on the specimen to get the temp down