Omron E3T-SL22 5M Ultracompact Photoelectric Sensor
The Omron E3T-SL22 5M Photoelectric Sensor is an ultracompact, ultrathin limited reflective sensor with a 5 to 30 mm sensing distance for precise object detection. This Ultracompact Photoelectric Sensor with Built-in Amplifier uses a Red LED light source, supports NPN output, operates on 12 to 24 VDC power supply, and features Dark-ON mode with a 5 m pre-wired cable. 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-SL22 5M |
Omron E3T-SL22 5M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Limited Reflective |
| Shape | Square type |
| Sensing Distance | 5 to 30 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-SL22 5M photoelectric sensor is designed as an ultracompact and ultrathin sensing solution for space-constrained automation environments. Using limited reflective sensing technology, it provides reliable object detection within a 5 to 30 mm range. The built-in amplifier simplifies installation while maintaining stable sensing performance in industrial control systems.
In practical applications, the E3T-SL22 5M is widely used in electronic assembly lines, compact conveyors, inspection stations, and small automated machines. Its Red LED light source enables accurate detection of targets at close range, while the NPN output allows seamless integration with PLC inputs and control circuits commonly used in factory automation.
The E3T-SL22 5M sensor operates on a 12 to 24 VDC supply and supports Dark-ON operation, ensuring consistent output under varying ambient conditions. As part of the Omron E3T Series, it delivers dependable sensing performance, compact mechanical design, and compatibility with industrial automation systems where precision and installation flexibility are essential.




