The Autonica BF5R-D1-N is a display-equipped standard-type sensor featuring a 4-digit 7-segment LED readout and a red LED light source at 660 nm. It offers a wide range of response times including 50 μs, 150 μs, 500 μs, 4 ms, and 10 ms to suit different sensing applications. Powered by 12–24 V DC with a ripple specification of up to 10%, it draws a maximum of 50 mA and provides flexible operation modes, including Light ON or Dark ON according to a user-set parameter. The sensor uses an NPN open-collector control output and includes a versatile timer function with options of OFF, OFF Delay, ON Delay, and One-shot (1–5000 ms). Sensitivity can be adjusted manually, and it supports teaching modes such as auto-tuning, 1-point, 2-point, and positioning, with batch teaching available when multiple units are connected. Communication is provided via I2C, supporting up to eight units. The device tolerates ambient illumination up to 11,000 lx in sunlight and 3,000 lx under incandescent lighting, operates from -10 to 50°C (storage -20 to 70°C), and carries IP40 protection with humidity tolerance of 35–85% RH (storage 35–85% RH). It features built-in mutual interference prevention that supports up to eight unit sets, initializing in factory mode, and includes energy-saving options (Normal, Energy Saving 1, Energy Saving 2). The housing is made of polybutylene terephthalate with a polycarbonate cover, and the connector arrangement uses a Ø4 mm, 3-wire, 2 m cable (AWG22, 60 cores across insulator diameter). Accessory side connectors are provided for easy installation.