The Banner Engineering Q20E-78017 Photoelectric Emitter is a World-BEAM Q20 Series emitter (red visible beam) designed for through-beam sensing; with a 12 m maximum range, 624 nm wavelength, and 10–30 V DC supply, it ships with a 5 m (17 ft) cable for quick mounting. It operates in sensing mode emitter with no internal output and is intended to be used with a compatible Q20 receiver in opposed mode; the rectangular thermoplastic housing is IP67 rated and NEMA 4X compliant, with standard mounting holes on a 25.4 mm (1 in) spacing and an operating temperature range of -20°C to 60°C.
