The photometer P34 Professional meets all the requirements of modern water analysis. The device has a backlit display. Measuring range, reagent type as well as an automatic countdown timer for accurate response times are displayed. The internal memory stores up to 1,000 events with date, time and sample ID. The data can be retrieved at any time and transferred via an optional infrared module. The photometer P34 Professional serves, among others, to detect alkalinity, aluminum, bromine, chlorine, chlorine dioxide, chlorite, cyanuric acid, iron, urea, hardness, iodine, copper, sodium hypochlorite, ozone, PHMB, phosphate, pH, oxygen, acid, sulphate and hydrogen peroxide using various methods.