Omron E3T-ST22M 2M Through-Beam Photoelectric Sensor
The Omron E3T-ST22M 2M Photoelectric Sensor is an ultracompact, ultrathin through-beam sensor with built-in amplifier and M3-mounting design. It offers 300 mm sensing distance, NPN output, pre-wired 2 m cable, and a red LED light source operating on 12 to 24 VDC power supply with Dark-ON mode. Manufactured by Omron, this sensor is part of the Omron Photoelectric Sensors range and belongs to the Omron E3T Series.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-ST22M 2M |
Omron E3T-ST22M 2M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Square type |
| Sensing Distance | 300mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired cable length 2m |
| 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-ST22M 2M is a square-type, through-beam photoelectric sensor designed for precise object detection in compact automation environments. As an ultracompact and ultrathin photoelectric sensor with built-in amplifier, it supports 300 mm sensing distance, NPN output, and stable 12β24 VDC operation. The integrated red LED light source ensures consistent detection performance in close-range applications.
In industrial applications, the E3T-ST22M 2M sensor is commonly used in assembly machines, electronic component handling, conveyor systems, and positioning mechanisms. Its M3-mounting structure allows easy installation in space-constrained equipment, while the through-beam sensing method enables reliable detection of small objects and precise alignment in automated production lines.
The Omron E3T Series is known for durability, electrical stability, and repeatable sensing performance. As part of this series, the E3T-ST22M 2M supports long-term industrial operation with resistance to noise and stable output behavior. Engineers selecting ultracompact through-beam sensors value this model for its compact form factor, dependable sensing accuracy, and compatibility with modern industrial control systems.
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