UV Sensor Set P5100 for SITA UV Systems, article 3811-0810. OEM reference: P5100. The UV intensity sensor measures the irradiance reaching the chamber wall and drives the low-UV alarm. Sensors drift in service and are checked or replaced at the validation interval of the plant. Sensors to DVGW / OENORM practice use a standardised measuring window and holder. Spare part for UV disinfection systems of S.I.T.A. srl, Genoa, Italy, which builds low-pressure, amalgam and medium-pressure UV units for drinking water, food and beverage, aquaculture, swimming pool, marine and wastewater duty (series AL, LCD / Rack LCD, AM, IT, 440, HDPE, SBT, SMP, SSD, TOC, GR and Pool).