Procurement teams shortlist E3T-ST12M-2M with Omron Photoelectric Sensor, E3Z D61 2M and Omron Sensors, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Omron E3T-ST12M 2M Photoelectric Sensor
The Omron E3T-ST12M 2M Photoelectric Sensor is an ultracompact through-beam offering a precise 1 m sensing distance, NPN output, and Dark-ON operation with red light emission. It operates on a 12 to 24 VDC power supply and is part of the Omron automation portfolio under the Omron Photoelectric Sensors category and the Omron E3T Series. Designed for detecting opaque objects as small as 2 mm, it features 30 mA current consumption, 1 ms response time, IP67 protection, and a durable 2 m pre-wired cable ensuring stable operation in compact industrial setups.
| Brand | Omron |
| Product Type | Photoelectric Sensor |
| Model Number | E3T-ST12M 2M |
Omron E3T-ST12M 2M Photoelectric Sensor โ Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Sensing Distance | 1 m |
| Standard Sensing Object | Opaque, 2-mm dia. min. |
| Light Source | Red LED (650 nm) |
| Power Supply Voltage | 12 to 24 VDC , ripple (p-p) 10% max. |
| Output configuration | NPN |
| Connection Method | Pre-wired 2 M cable |
| Current Consumption | 30 mA max. (Emitter 10 mA max., Receiver 20 mA max.) |
| Control Output | Load power supply voltage: 26.4 VDC max. Load current: 50 mA max. (residual voltage: 2 V max. for load current of 10 to 50 mA, 1 V max. for load current of less than 10 mA) Open-collector output |
| Operation Mode | Dark-ON |
| Response Time | Operate or reset: 1 ms max. |
| Indicators | Operation indicator (orange), Stability indicator (green) |
| Ambient Illumination | Incandescent lamp: 5,000 lx max., Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: โ25 to 55ยฐC Storage: โ40 to 70ยฐC (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85% Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 Mฮฉ min. at 500 VDC |
| Dielectric Strength | AC1,000V, 50/60 Hz for 1 min. |
| Vibration Resistance | 10 to 2,000 Hz, 1.5-mm double amplitude or 300 m/s2 for 0.5 hours each in X, Y, and Z directions |
| Shock Resistance | 1,000 m/s2 3 times each in X, Y, and Z directions |
| Protection Circuits | Power supply and control output reverse polarity protection, Output short-circuit protection |
| Degree of Protection | IEC 60529 IP67 |
| Material | PBT (polybutylene terephthalate), Denatured polyarylate |
| Weight | Approx. 40 g |
The Omron E3T-ST12M 2M uses a through-beam sensing method to detect opaque objects as small as 2 mm in diameter at a range of 1 meter. It operates on a 12 to 24 VDC power supply and uses a red LED (650 nm) as the light source. With a fast 1 ms response time and NPN open-collector output in Dark-ON mode, itโs built to handle real-time operations in demanding automation environments.
This sensor consumes just 30 mAโsplit between the emitter and receiverโand includes easy-to-read operation (orange) and stability (green) indicators for on-site diagnostics. Its pre-wired 2-meter cable allows for quick integration into machine layouts. Safety is reinforced with built-in reverse polarity and short-circuit protection, ensuring consistent performance in variable power conditions.
Engineered from PBT and denatured polyarylate, the Omron E3T-ST12M 2M Photoelectric Sensor is designed for rugged use. Itโs rated IP67 under IEC 60529, providing resistance to dust, water, vibrations up to 2,000 Hz, and shock levels up to 1,000 m/sยฒ. Weighing just 40 g, it is well-suited for integration into high-density automation systems.
Related Products
