A chemically active urinalysis reagent strip or "dipstick" is used to test urine samples, the chemically coated patches on these pads change color when dipped in urine - reacting to the contents present in the sample. The color change, that happens gradually over a specified time period after dipping the strip, helps identify the concentration of different analytes in urine. The uChek system makes use of your smartphone camera and intelligent software to function similar to most commercially available semi-automated urine analyzer machine