Omron E3T-SL12 5M Ultracompact Photoelectric Sensor
The Omron E3T-SL12 5M Photoelectric Sensor is an ultracompact, ultrathin photoelectric sensor with built-in amplifier using limited reflective sensing. This square-type sensor provides a 5 to 15 mm sensing distance, features NPN output, a red LED light source, and operates on a 12 to 24 VDC power supply with Dark-ON mode. Manufactured by Omron, it is part of the Omron Photoelectric Sensors range and belongs to the Omron E3T Series.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL12 5M |
Omron E3T-SL12 5M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Limited Reflective |
| Shape | Square type |
| Sensing Distance | 5 to 15 mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired cable length 5m |
| Current Consumption | 20 mA max. |
| Light Source (Wavelength) | Red LED |
| Operation Mode | Dark-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | Polybutylene terephthalate |
| Material Lens | Denatured Polyarylate |
| Weight | 20g |
The Omron E3T-SL12 5M photoelectric sensor is a limited reflective sensing device designed for precise object detection in space-constrained automation systems. As an ultrathin photoelectric sensor with built-in amplifier, it supports 5β15 mm sensing distance, NPN transistor output, and stable 12β24 VDC operation, ensuring consistent detection performance in industrial environments.
In practical applications, the E3T-SL12 5M sensor is commonly used in electronic assembly, compact machinery, material positioning, and precision automation lines. Its square, low-profile body allows installation in narrow mounting spaces, while the red LED light source ensures reliable detection of small objects where reflective sensing accuracy is required.
The Omron E3T Series is recognized for durability and stable operation in industrial automation. The E3T-SL12 5M model offers dependable noise resistance, consistent output switching, and long-term reliability. Engineers selecting limited reflective photoelectric sensors value this model for its compact design, electrical stability, and compatibility with modern control systems.


