Its like 45 bucks here. Sounds like fun tho.. ID do it if I had them extra cash
I thought about getting one but with how much they cost I talked myself out of it. Had they been cheaper I would of.
I have not tried them, but did the home made ones. Google them, Chlorine and first morning urine, baking soda and fmu, and the red cabbage test too. They are not 100% accurate, but like 70%, and fun. Be careful with the bleach, the smell is toxic, do it outside. Post your results.