![[OMRON] — E3T-ST M2-mounting Side-view Through-beam Ultracompact Sensor (2m/1m/300mm, Red/Infrared, NPN/PNP)](https://img.prosourcemro.com/2026/05/001-331-1024x683.png)
Photoelectric
Omron
[OMRON] — E3T-ST M2-mounting Side-view Through-beam Ultracompact Sensor (2m/1m/300mm, Red/Infrared, NPN/PNP)
Family ID: OMRON-E3T-ST-M2
OMRON E3T Series M2-mounting side-view through-beam ultracompact photoelectric sensors. Red light: 2 m (E3T-ST3x), 1 m (E3T-ST1x), 300 mm (E3T-ST2x). Infrared: 2 m (E3T-ST3xF), 1 m (E3T-ST1xF), 300 mm (E3T-ST2xF). Light-ON and Dark-ON modes. NPN and PNP output. Cable 2 m. Set models listed; Emitter (-L) and Receiver (-D) available individually. Robot cable models (R suffix) and Sensitivity Adjustment Unit (E39-E10) available separately.
24 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| E3T-ST31 2M | M2 side-view through-beam 2 m Red light NPN Light-ON | OMRON | Sensing Distance: 2 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST32 2M | M2 side-view through-beam 2 m Red light NPN Dark-ON | OMRON | Sensing Distance: 2 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST33 2M | M2 side-view through-beam 2 m Red light PNP Light-ON | OMRON | Sensing Distance: 2 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST34 2M | M2 side-view through-beam 2 m Red light PNP Dark-ON | OMRON | Sensing Distance: 2 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST11 2M | M2 side-view through-beam 1 m Red light NPN Light-ON | OMRON | Sensing Distance: 1 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST12 2M | M2 side-view through-beam 1 m Red light NPN Dark-ON | OMRON | Sensing Distance: 1 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST13 2M | M2 side-view through-beam 1 m Red light PNP Light-ON | OMRON | Sensing Distance: 1 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST14 2M | M2 side-view through-beam 1 m Red light PNP Dark-ON | OMRON | Sensing Distance: 1 m | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) / Robot (bending-resistant) cable model also available: add 'R' suffix (e.g. E3T-ST11R 2M) | ||
| E3T-ST21 2M | M2 side-view through-beam 300 mm Red light NPN Light-ON | OMRON | Sensing Distance: 300 mm | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST22 2M | M2 side-view through-beam 300 mm Red light NPN Dark-ON | OMRON | Sensing Distance: 300 mm | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST23 2M | M2 side-view through-beam 300 mm Red light PNP Light-ON | OMRON | Sensing Distance: 300 mm | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST24 2M | M2 side-view through-beam 300 mm Red light PNP Dark-ON | OMRON | Sensing Distance: 300 mm | Light Source: Red light | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST31F 2M | M2 side-view through-beam 2 m Infrared NPN Light-ON | OMRON | Sensing Distance: 2 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST32F 2M | M2 side-view through-beam 2 m Infrared NPN Dark-ON | OMRON | Sensing Distance: 2 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST33F 2M | M2 side-view through-beam 2 m Infrared PNP Light-ON | OMRON | Sensing Distance: 2 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST34F 2M | M2 side-view through-beam 2 m Infrared PNP Dark-ON | OMRON | Sensing Distance: 2 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST11F 2M | M2 side-view through-beam 1 m Infrared NPN Light-ON | OMRON | Sensing Distance: 1 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST12F 2M | M2 side-view through-beam 1 m Infrared NPN Dark-ON | OMRON | Sensing Distance: 1 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST13F 2M | M2 side-view through-beam 1 m Infrared PNP Light-ON | OMRON | Sensing Distance: 1 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST14F 2M | M2 side-view through-beam 1 m Infrared PNP Dark-ON | OMRON | Sensing Distance: 1 m | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST21F 2M | M2 side-view through-beam 300 mm Infrared NPN Light-ON | OMRON | Sensing Distance: 300 mm | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST22F 2M | M2 side-view through-beam 300 mm Infrared NPN Dark-ON | OMRON | Sensing Distance: 300 mm | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: NPN | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST23F 2M | M2 side-view through-beam 300 mm Infrared PNP Light-ON | OMRON | Sensing Distance: 300 mm | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Light-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) | ||
| E3T-ST24F 2M | M2 side-view through-beam 300 mm Infrared PNP Dark-ON | OMRON | Sensing Distance: 300 mm | Light Source: Infrared | Sensing Method: Through-beam Side-view (M2 mounting, Set) | Output: PNP | Operation Mode: Dark-ON | Emitter/Receiver: Order individually by adding -L (Emitter) or -D (Receiver) suffix | Also Available: Emitter-only: add '-L' suffix; Receiver-only: add '-D' suffix (e.g. E3T-ST11-L 2M, E3T-ST11-D 2M) |
