Omron E3T-SL11 2M Ultracompact Photoelectric Sensor
Omron E3T-SL11 2M is an ultracompact limited-reflective photoelectric sensor designed for short-range object sensing from 5 to 15 mm. A red LED directs light toward the target, while the built-in amplifier processes the returned optical signal. The NPN output transfers the switching state to compatible PLC inputs and control circuits, and Light-ON operation defines the specified logic. The sensor operates from 12 to 24 VDC, consumes up to 20 mA, and includes a 2 m pre-wired cable. Its square format supports compact mounting positions. Within the E3T Series, the E3T-SL11 2M provides the Light-ON NPN option. Related limited-reflective sensors are available across Omron Sensing Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL11 2M |
Omron E3T-SL11 2M 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 2m |
| Current Consumption | 20 mA max. |
| Light Source (Wavelength) | Red LED |
| Operation Mode | Light-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | Polybutylene terephthalate |
| Material Lens | Denatured Polyarylate |
| Weight | 20g |
The Omron E3T-SL11 2M Photoelectric Sensor uses limited-reflective sensing across a short 5 to 15 mm range in an ultracompact square body. A red LED directs light toward the target, while the built-in amplifier processes the returned optical signal. The NPN output transfers the switching state to compatible PLC inputs and machine-control circuitry, while Light-ON operation defines the specified logic. The sensor operates from 12 to 24 VDC and consumes up to 20 mA. Operate or reset time is 1 ms max., and a 2 m pre-wired cable provides the electrical connection. The short sensing range supports close-position object sensing where mounting space is limited.
For an Omron limited reflective photoelectric sensor requiring NPN output and Light-ON operation, the corresponding model is the E3T-SL11. Polybutylene terephthalate is listed for the housing and denatured polyarylate for the optical section. IP67 protection is specified, while approximate weight is 20 g. Its specification also matches searches for an Omron 15 mm reflective sensor and Omron compact NPN sensor. The 1 ms response supports close-position sensing of small components in compact automated equipment. For the related Dark-ON NPN version with the same 5 to 15 mm sensing range, see E3T-SL12 2M.


