Omron E3T-ST14 5M Ultracompact Through-Beam Photoelectric Sensor
Omron E3T-ST14 5M is an ultracompact through-beam photoelectric sensor providing a 1 m sensing distance with PNP output and Dark-ON operation. Its red LED creates the optical path between separate transmitting and receiving units, while the built-in amplifier processes the beam condition for compatible machine-control inputs. The sensor operates from 12 to 24 VDC, responds within 1 ms, and includes a 5 m pre-wired cable for extended wiring distance. Combined current consumption is 30 mA maximum, with 10 mA for the emitter and 20 mA for the receiver. Within the E3T Series, the E3T-ST14 5M provides the long-cable PNP Dark-ON configuration. Related square through-beam sensors can be explored across Omron Sensor Range.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-ST14 5M |
Omron E3T-ST14 5M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Square type |
| Sensing Distance | 1 m |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | PNP |
| Connection Method | Pre-wired cable length 5m |
| Current Consumption | 30 mA max. (Emitter 10 mA max., Receiver 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 | 40g |
The Omron E3T-ST14 5M Photoelectric Sensor uses through-beam sensing across a 1 m range with separate transmitting and receiving units. A red LED creates the optical path, while the PNP output operates in Dark-ON mode for compatible industrial control inputs. Supply compatibility covers 12 to 24 VDC, and response time is specified at 1 ms. Combined current consumption is 30 mA maximum, consisting of 10 mA for the emitter and 20 mA for the receiver. A 5 m pre-wired cable provides extended wiring length between the sensing location and control equipment. The square ultracompact body supports restricted mounting spaces, while IP67 protection, PBT housing material, and denatured polyarylate components are listed in the supplied specification.
For an Omron PNP through beam sensor requiring 1 m sensing, Dark-ON switching, and a longer fixed cable, the relevant model is the E3T-ST14. Its 12 to 24 VDC supply and 1 ms response support compact DC control systems requiring quick switching. Approximate weight is specified at 40 g. The configuration also matches searches for an Omron 5 m cable sensor and Omron compact Dark ON photoelectric sensor. The longer pre-wired connection can reduce the need for an intermediate cable joint near the sensing position. For a related Light-ON PNP version with the same 5 m cable length, see E3T-ST13 5M.


