Sloan Valve Company EL1500 Sensor Assembly

Sloan EL1500 Sensor Assembly is a two‑wire infrared sensor kit in Sloan’s Optima flushometer system, designed to replace older EL‑150 sensors on urinal valve assemblies. It detects user presence and triggers the solenoid for a flush after a brief delay, with a common activation delay around 0.5 seconds (some configurations and variants report longer delays up to 3 seconds). Replacement kits are cataloged under Sloan part numbers such as 3305620 (EL‑1500 Urinal Sensor Replacement Kit), 3305720 (EL‑1500‑L‑AD with 1 hr Sentinel Flush), 3305722 (EL‑1500‑L‑AM, 48" Range), 3305737 (EL‑1500‑AR), and 3305738 (EL‑1500‑L‑AS), reflecting the range of short‑ and long‑range variants in the EL‑1500 family. These sensors are part of Sloan’s Optima line for urinal flush valves and are commonly used in commercial restrooms, educational facilities, and healthcare or office environments seeking hands‑free, reliable flushing.