These standard 18-mm tubular photoelectric sensors allow configuration through either the integral teach button or IO-Link. The tubular sensors have multiple output modes, including single-point mode, window mode and two-point sensing mode with either standard or dynamic teach functionalities. Features include diffuse, retroreflective and through-beam modes; diagnostics with IO-Link, including low voltage, over temperature and emitter detect; stability/margin indicator; visible red light for easy alignment; and rugged metal housing.