Omron E3Z-LS81 2M Photoelectric Sensor
The Omron E3Z-LS81 2M Photoelectric Sensor offers Distance-settable, 20 to 200 mm (BGS setting) Sensing distance, PNP Output, Pre Wired, Cable Length 2M, Red LED (670 nm), 12 to 24 VDC Power supply voltage, Light-ON/Dark-ON mode. Manufactured by Omron under the Omron Photoelectric Sensors category, this model belongs to the Omron E3Z Series.
| Brand | Omron |
| Product Type | Photoelectric Sensor |
| Model Number | E3Z-LS81 2M |
Omron E3Z-LS81 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Distance-settable |
| Sensing Distance | 20 to 200 mm (BGS setting) |
| Light Source | Red LED (670 nm) |
| Power Supply Voltage | 12 to 24 VDC |
| Output configuration | PNP |
| Connection Method | Pre Wired, Cable Length 2M |
| Current Consumption | 30 mA max. |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | Operate or reset: 1 ms max |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 3,000 lx max.; Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25 to 55°C, Storage: −40 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85%, Storage: 35% to 95% (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 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions |
| Protection Circuits | Reversed power supply polarity protection, Output short-circuit protection, Mutual interference prevention |
| Degree of Protection | IP67 (IEC 60529) |
| Material | PBT (polybutylene terephthalate) |
| Weight | Approx. 65 g |
The Omron E3Z-LS81 2M Photoelectric Sensor provides dependable distance-settable detection for a wide range of industrial automation applications. With a sensing distance of 20–200 mm, 12–24 VDC operation, and PNP output, it delivers consistent performance in high-speed packaging lines, conveyor systems, and robotic assemblies. Its IP67-rated enclosure protects against water, dust, and oil ingress, ensuring long-term reliability even under tough factory conditions. The built-in reverse polarity and short-circuit protection further enhance system safety and operational stability. With a rapid 1 ms response time and one-turn sensitivity adjuster, the E3Z-LS81 2M allows engineers to fine-tune detection for materials of varying textures, colors, or reflectivity with ease.
This model’s rugged PBT housing and robust internal design ensure durability under vibration and shock, making it suitable for continuous production environments. The sensor’s low current consumption of 30 mA and ability to operate between −25°C and 55°C make it a practical choice for automated systems requiring efficiency and energy savings. Whether used for object positioning, carton presence detection, or process verification, it offers consistent performance and reliability trusted by engineers across India.
Developed by Omron Corporation—a global leader in sensing and control technologies—the E3Z-LS81 2M is built under ISO-certified manufacturing standards. Omron’s strong presence in India ensures local support, quick service, and easy integration into existing automation systems. Maintenance teams and OEMs value this model for its long service life and simple installation, supported by Omron’s commitment to safety, precision, and innovation.
Within the Omron E3Z Series, users can select related models to match specific application needs. For shorter range detection, the Omron E3Z-LS61 2M (NPN output), while for diffuse reflective sensing, choose the Omron E3Z-D61 2M. Each variant shares the same compact structure, IP67 protection, and reliable output, offering flexibility across automation setups. Together, these sensors integrate seamlessly with Omron Relays, SMPS units, and PLC controllers to form robust and efficient control systems.
The Omron E3Z-LS81 2M Distance-Settable Photoelectric Sensor represents a perfect balance of accuracy, durability, and adaptability for modern industrial automation. With its advanced sensing capability, compact design, and proven reliability, it continues to be a preferred choice among OEMs, integrators, and engineers across India seeking long-term performance and seamless integration into automated production systems.
Omron E3Z-LS81 2M People Also Asked Questions
What is the sensing method and range of the Omron E3Z-LS81 2M Photo Sensor?
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