Omron E3T-SL24 5M Ultracompact Photoelectric Sensor
Omron E3T-SL24 5M is an ultracompact limited-reflective photoelectric sensor designed for close-range object sensing from 5 to 30 mm. Its red LED illuminates the target area, while the built-in amplifier processes the returned optical signal. A PNP output communicates the switching state to compatible industrial control circuitry, and Dark-ON operation defines the specified logic. The sensor operates from 12 to 24 VDC, consumes up to 20 mA, and includes a 5 m pre-wired cable for longer wiring runs. The square body supports compact mounting positions. Within the E3T Series, the E3T-SL24 5M provides the extended-cable PNP option. Related short-distance PNP sensors are available across Omron Automation Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL24 5M |
Omron E3T-SL24 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 | PNP |
| 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-SL24 5M Photoelectric Sensor uses limited-reflective sensing across a 5 to 30 mm range in an ultracompact square format. Its red LED illuminates the target, while the built-in amplifier processes the returned optical signal. The PNP output communicates the switching state to compatible industrial control circuits, and Dark-ON operation defines the specified output behavior. The sensor operates from 12 to 24 VDC and consumes up to 20 mA. Operate or reset time is specified at 1 ms max. A 5 m pre-wired cable provides extended connection length between the sensing position and control equipment.
For an Omron PNP limited reflective sensor requiring Dark-ON operation and longer wiring, the relevant model is the E3T-SL24. Polybutylene terephthalate is specified for the housing, while denatured polyarylate is listed for the optical section. IP67 protection is stated, with approximate weight of 20 g. Its specification also suits searches for an Omron 5 m cable PNP sensor and Omron short range Dark ON sensor. The 1 ms response supports part presence and position confirmation in compact automated equipment. For the related Light-ON PNP version with the same cable length and sensing range, see E3T-SL23 5M.


