Series S18. The photoelectric sensors of the S18 series are fully encapsulated in epoxy resin for outstanding durability and meet the strict IP69K standards for use in washing processes with pressures of up to 1200 psi. The S18 series sensor features a switching distance that varies with the reflectivity of the target, as the sensor is triggered by the light reflected from the target. Performance features: EZ-Beam technology for reliable detection without the need for adjustments, innovative dual display for easy sensor monitoring, 18 mm threaded sleeve, compact design, optional light or dark operation or light operation with alarm function, LED display, reverse polarity and short-circuit protection, available with various detection modes, advanced diagnostics to alert about sensor conditions at the edge of the tolerance range or overload at the output.