...[-] E4A-3K Data Sheet Ultrasonic Reflective Sensor E4A-3K Sensor with an Adjustable Sensing Distance of 0.3 to 3 m Under Stable Operation without Background Interference ■ Ensures a stable operating range with minimal side-lobe areas. ■ Built-in unstable operation check function allows easy adjustment to a proper mounting direction. ■ Mono-block construction with a sensor, power supply, and terminals ensures easy wiring. ■ Incorporates synchronous selector and reference pulse I/O terminals ideal for parallel-operation use without mutual interference. Ordering Information Sensing method Model Reflective for AC ...