The ITS 486798-K is a duo wavelength photometer kit which includes the following:
The Eco-Check Meter - Water Tester Kit - 486798-K features 0.01 ppm (mg/L) precision with no visual color matching required. This water testing meter incorporates eXact Strip technology which uses safe and reliable reagent dispersion. This water tester has a built-in permanent cell, so there's no loose glass or plastic cells. Simply fill or dip into the water. This 486798-K meter is waterproof and it floats. This water tester features an easy-to-read LCD display.
The ITS 486798-K specifications: