The Sterilight 254NM-FP1 is a 254 nm UV sensor for systems using a low pressure high output lamps. This sensor can be described as a flow pace sensor, which will throttle back the UV lamp of the system in no-flow conditions, thereby reducing heat build up in the reactor and saving on energy. The calibration of the 254NM-FP1 is set so the UV system will go into an alarm condition when the UV intensity drops below 50% of the lamp's intensity.

254NM-FP1 is used on both the non-validated Platinum systems and the "HW" (hot water) Platinum systems.
Compatible with SP100-HO, SP320-HO, SP410-HO, SP600-HO, SP740-HO, and SP950-HO.