Omron E3T-SL24 2M Photoelectric Sensor
Omron E3T-SL24 2M is an ultrathin limited-reflective photoelectric sensor designed for object sensing across a 5 to 30 mm range. A red LED provides the optical source, while the built-in amplifier processes light returned from the target. Its PNP output supplies the switching state to compatible PLC inputs and control circuits, and Dark-ON operation defines the specified output logic. The sensor operates from 12 to 24 VDC, consumes up to 20 mA, and includes a 2 m pre-wired cable. Response time is specified at 1 ms max. Within the E3T Series, the E3T-SL24 2M provides the PNP Dark-ON configuration. Related Dark-ON reflective sensors are available across Omron Industrial Sensor Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL24 2M |
Omron E3T-SL24 2M 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 | PNP |
| Connection Method | Pre-wired cable length 2m |
| 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-SL24 2M Photoelectric Sensor uses limited-reflective sensing across a 5 to 30 mm range in an ultrathin square body. A red LED supplies the optical source, while the built-in amplifier processes light returned from the target. Its PNP output transfers the switching state to compatible PLC inputs and industrial control circuitry, and Dark-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 direct electrical connection. The short working range supports close-position sensing where installation area is restricted.
For an Omron Dark ON PNP reflective sensor requiring 5 to 30 mm sensing, the corresponding model is the E3T-SL24. Polybutylene terephthalate is listed for the housing and denatured polyarylate for the optical section. IP67 protection is specified, with approximate weight of 20 g. Its configuration also matches searches for an Omron compact PNP sensor and Omron 30 mm Dark ON sensor. The 1 ms response supports short-range part presence and position confirmation in compact automation equipment. For the related Light-ON PNP version using the same sensing range and cable length, see E3T-SL23 2M.


