Sloan 3325578 Dual Filtered Infrared Optical Sensor is a dual-filtered infrared sensing device within Sloan's Royal Optima Plus line, cataloged as 4LW56 and RESS-1.0U. The dual filtration design improves signal discrimination for more reliable detection. Identified by model number 3325578, this sensor is part of Sloan's Royal Optima Plus family of infrared sensors.
