![[OMRON] — E3S-A Through-beam Photoelectric Sensor (7m, Horizontal/Vertical, NPN/PNP)](https://img.prosourcemro.com/2026/05/001-344-1024x1024.png)
Photoelectric
Omron
[OMRON] — E3S-A Through-beam Photoelectric Sensor (7m, Horizontal/Vertical, NPN/PNP)
Family ID: OMRON-E3S-A-THROUGH
OMRON E3S-A Series medium-size through-beam photoelectric sensors. 7 m red light. Horizontal and Vertical mounting. NPN and PNP. Standard and function variant models. Pre-wired 2 m (set/emitter/receiver) and M12 connector. Slits E39-S46 and interference filters E39-E6 sold separately.
36 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| E3S-AT11 2M | Through-beam Horizontal Standard NPN set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT11-L | Through-beam Horizontal Standard NPN emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT11-D (Receiver) | ||
| E3S-AT11-D | Through-beam Horizontal Standard NPN receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT11-L (Emitter) | ||
| E3S-AT16 | Through-beam Horizontal NPN set M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Note: M12 model shared between Standard and Function variant | ||
| E3S-AT16-L | Through-beam Horizontal NPN emitter M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT16-D | ||
| E3S-AT16-D | Through-beam Horizontal NPN receiver M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT16-L | ||
| E3S-AT31 2M | Through-beam Horizontal Standard PNP set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT31-L | Through-beam Horizontal Standard PNP emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT31-D (Receiver) | ||
| E3S-AT31-D | Through-beam Horizontal Standard PNP receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT31-L (Emitter) | ||
| E3S-AT36 | Through-beam Horizontal PNP set M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Note: M12 model shared between Standard and Function variant | ||
| E3S-AT36-L | Through-beam Horizontal PNP emitter M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT36-D | ||
| E3S-AT36-D | Through-beam Horizontal PNP receiver M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT36-L | ||
| E3S-AT21 2M | Through-beam Horizontal Function variant NPN set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT21-L | Through-beam Horizontal Function variant NPN emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT21-D (Receiver) | ||
| E3S-AT21-D | Through-beam Horizontal Function variant NPN receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: NPN | Orientation: Horizontal | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT21-L (Emitter) | ||
| E3S-AT41 2M | Through-beam Horizontal Function variant PNP set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT41-L | Through-beam Horizontal Function variant PNP emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT41-D (Receiver) | ||
| E3S-AT41-D | Through-beam Horizontal Function variant PNP receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Horizontal) | Output: PNP | Orientation: Horizontal | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT41-L (Emitter) | ||
| E3S-AT61 2M | Through-beam Vertical Standard NPN set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT61-L | Through-beam Vertical Standard NPN emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT61-D (Receiver) | ||
| E3S-AT61-D | Through-beam Vertical Standard NPN receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT61-L (Emitter) | ||
| E3S-AT66 | Through-beam Vertical NPN set M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Note: M12 model shared between Standard and Function variant | ||
| E3S-AT66-L | Through-beam Vertical NPN emitter M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT66-D | ||
| E3S-AT66-D | Through-beam Vertical NPN receiver M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT66-L | ||
| E3S-AT81 2M | Through-beam Vertical Standard PNP set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT81-L | Through-beam Vertical Standard PNP emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT81-D (Receiver) | ||
| E3S-AT81-D | Through-beam Vertical Standard PNP receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT81-L (Emitter) | ||
| E3S-AT86 | Through-beam Vertical PNP set M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Note: M12 model shared between Standard and Function variant | ||
| E3S-AT86-L | Through-beam Vertical PNP emitter M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT86-D | ||
| E3S-AT86-D | Through-beam Vertical PNP receiver M12 | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Standard | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: M12 Connector | Required Cable: Requires XS2F-D421-DC0-F (2m) / XS2F-D421-GC0-F (5m) straight or XS2F-D422 L-shape (sold separately) | Pair With: E3S-AT86-L | ||
| E3S-AT71 2M | Through-beam Vertical Function variant NPN set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT71-L | Through-beam Vertical Function variant NPN emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT71-D (Receiver) | ||
| E3S-AT71-D | Through-beam Vertical Function variant NPN receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: NPN | Orientation: Vertical | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT71-L (Emitter) | ||
| E3S-AT91 2M | Through-beam Vertical Function variant PNP set 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Set | Connection: Pre-wired 2 m | ||
| E3S-AT91-L | Through-beam Vertical Function variant PNP emitter 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Emitter | Connection: Pre-wired 2 m | Pair With: E3S-AT91-D (Receiver) | ||
| E3S-AT91-D | Through-beam Vertical Function variant PNP receiver 2m | OMRON | Sensing Distance: 7 m | Light Source: Red light | Sensing Method: Through-beam (Vertical) | Output: PNP | Orientation: Vertical | Function: Function variant | Emitter/Receiver: Emitter: add '-L' suffix; Receiver: add '-D' suffix (e.g. E3S-AT11-L) | Note: Confirm function variant details in datasheet | Type: Through-beam Receiver | Connection: Pre-wired 2 m | Pair With: E3S-AT91-L (Emitter) |
