Omron E3C-LR11N 2M Photoelectric Sensor
Omron E3C-LR11N 2M is a coaxial retro-reflective photoelectric sensor using a Class 2 visible semiconductor laser for sensing across a distance of up to 7 m. Its 650 nm laser produces a focused spot, while the coaxial optical arrangement keeps the outgoing and returning light aligned along the same sensing axis. An MSR function is included in this model, and a pre-wired 2 m cable connects the sensing head to associated equipment. The supplied specification does not state a transistor output type or operating supply, so these details are not assumed. Within the E3C Series, the E3C-LR11N 2M provides long-range coaxial laser sensing. For long optical paths requiring retro-reflective laser alignment, coaxial retro-reflective laser sensors are included across Omron Sensing Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3C-LR11N 2M |
Omron E3C-LR11N 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Coaxial Retro-reflective (with MSR function) |
| Sensing Distance | 7 m |
| Light Source | Visible semiconductor laser (650 nm) |
| Laser Class | Class 2 |
| Connection Method | Pre-wired 2M Cable |
| Indicators | LDON indicator: Green; Operation indicator: Orange |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. |
| Ambient Temperature Range | Operating: −10 to 55°C, Storage: −25 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating/storage: 35% to 85% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 1,000 VAC at 50/60 Hz for 1 minute |
| Vibration Resistance | Destruction: 10 to 150 Hz with double amplitude of 0.7 mm, in X, Y, and Z directions for 80 min each |
| Shock Resistance | Destruction: 300 m/s2 6 directions 3 times each (up/down, right/left, forward/backward) |
| Degree Of Protection | IP40 (IEC 60529) |
| Material | Case and cover: ABS Front surface filter: Glass |
| Weight | Approx. 100 g |
The Omron E3C-LR11N 2M Photoelectric Sensor uses coaxial retro-reflective sensing with an MSR function across a distance of up to 7 m. Its 650 nm visible semiconductor laser is classified as Class 2 and creates a focused spot along the optical axis. In the coaxial arrangement, outgoing and returned light follow the same sensing axis, supporting alignment with the reflector over the specified range. A pre-wired 2 m cable provides connection between the sensing head and associated equipment. The supplied data does not specify an output configuration or operating supply voltage, so these values are not assumed. A green LDON indicator and orange operation indicator provide status information. Ambient incandescent-light resistance is specified up to 3,000 lx, while a glass front filter covers the optical surface.
For an Omron coaxial retro-reflective photoelectric sensor requiring a Class 2 laser, MSR function, 7 m sensing range, and pre-wired sensing head, the corresponding model is the E3C-LR11N. Operating temperature extends from -10 to 55°C and storage from -25 to 70°C. ABS is specified for the case and cover, with glass used for the front filter. Its format also matches searches for an Omron coaxial laser sensor, Omron retro-reflective laser sensor, and Omron 7 m photoelectric sensor. For a related E3C laser sensing head using diffuse-reflective operation at distances up to 1 m, see E3C-LD11N 2M.

