PA18CLD04TOM6SA is an adjustable diffuse-reflective photoelectric sensor designed for general-purpose industrial detection in a compact 18 mm cylindrical PBTP housing. It features a modulated infrared light source (GaAlAs LED at 880 nm) with an adjustable sensing range up to 400 mm, a 2-wire SCR thyristor output rated at 500 mA continuous current, and make or break switching capability with LED indication. The sensor operates on 20 to 250 VAC at 45 to 65 Hz, offers high immunity to ambient light (up to 10,000 lux), and includes a 270° turn potentiometer for sensitivity adjustment with a temperature drift of 0.4%/K. With an IP 67 protection rating, operating temperature range of -20°C to +60°C, and response times of =20 ms (ON) and =30 ms (OFF), this sensor is ideal for simple detection applications requiring reliable performance in industrial environments.