Banner Engineering SLM120N6Q Fixed Distance Slot Sensor

The Banner Engineering SLM120N6Q is a rugged, nickel‑plated metal fixed‑distance slot sensor (fork style) in the SLM Series, featuring a self‑contained opposed‑mode emitter/receiver with a 120 mm slot width to detect a part passing through the opening. It operates from 10 to 30 V DC and provides an NPN output via a 3‑pin M8 integral quick‑disconnect connector, making it straightforward to integrate on automation lines. Built with a die‑cast zinc housing and yellow‑paint finish (endcaps are ABS), the unit is rated IP67 (NEMA 6) for harsh environments and withstands −20 to +60 °C (−4 to +140 °F). Onboard adjustments include a light/dark operate selector and a 1‑turn potentiometer for sensitivity, complemented by two LEDs (Power green, Output yellow) to indicate status. The model designation, with the “N” suffix, denotes nickel plating on the housing, and the fixed slot opening provides consistent sensing distance for applications such as position detection, end‑of‑travel sensing, and gating on production lines where monitoring a wide 120 mm slot is required.