The Autonica BF5R-S1-N is a single-display standard-type sensor with a 4-digit 7-segment LED readout and a red LED light source at 660 nm. It offers response times of 150 μs, 500 μs, and 4 ms, and operates from 12 to 24 V DC with a ripple tolerance of up to 10%, drawing up to 50 mA. The unit supports Light ON or Dark ON operation controlled by a parameter and uses an NPN open-collector output. Its timer function includes OFF, OFF Delay of 10 ms or 40 ms. Sensitivity is adjustable manually with teaching options including auto-tuning, 1-point, 2-point, and positioning, and batch teaching is available in multi-unit connections. Communication is via I2C for up to eight units. It tolerates ambient illumination up to 11,000 lx in sunlight and 3,000 lx under incandescent light, and operates from -10 to 50°C (storage -20 to 70°C) with IP40 protection and 35–85% RH humidity (storage). Mutual interference prevention supports up to eight unit sets and is automatically configured regardless of response time. The housing is made from polybutylene terephthalate with a polycarbonate cover, and the cable is Ø4 mm, 3-wire, 2 m long with AWG22 conductors and a side connector. Accessories include a fixing bracket, bolts, and nuts.