Banner LT3NU 50 m Time-of-Flight Laser Sensor

Laser Distance Sensor for Industrial Use

The Banner LT3NU is a time-of-flight laser sensor designed for precise distance measurement in industrial environments. It detects objects from 300 mm to 5000 mm using a visible Class 2 red laser beam at 658 nm. The unit operates on a 12-24 V dc power supply and provides both 0-10 V analog and NPN discrete outputs for integration with control systems. It suits automation tasks requiring reliable non-contact position feedback.

Rectangular ABS Housing with IP67 Rating

The sensor features a rectangular housing made from ABS plastic rated IP67 and NEMA 6 for protection against dust and water ingress. A fixed 2 m cable with 8 pins handles power and signal connections without a quick-disconnect option. Status LEDs provide local indication, while push-button and remote-teach adjustments allow configuration without a PC. The NPN output is protected against short circuits and switches up to 100 mA.

Upgrade from Basic Proximity Switches

This sensor replaces simple proximity switches when analog distance data is needed instead of a single switching point. The time-of-flight principle delivers repeatability of 1 to 1.25 mm at slow response speed across the full 5.0 m range. The jump is worthwhile for applications such as material handling or level monitoring where continuous position tracking improves process control over discrete on/off detection.