Omron E3Z-LS61 Distance-settable Photoelectric Sensor
The Omron E3Z-LS61 2M is a Distance-settable Photoelectric Sensor engineered for precise non-contact object detection in industrial automation environments. Designed with a compact rectangular housing, this sensor uses background suppression (BGS) technology to deliver a stable 20 to 200 mm sensing range using a red LED light source. It supports NPN output with selectable Light-ON and Dark-ON operation modes and operates on a 12 to 24 VDC power supply. Manufactured by Omron, the E3Z-LS61 belongs to the Omron Photoelectric Sensors, recognized for compact design, fast response, and reliable optical performance.

| Brand | Omron |
| Product | Photoelectric Sensor |
| Model Number | E3Z-LS61 2M |
Omron E3Z-LS61 Distance-settable Photoelectric Sensor â Technical Overview
| Specification | Value |
|---|---|
| Sensing Method | Background suppression (distance-settable) |
| Sensing Distance | 20 to 200 mm |
| Output | NPN |
| Connection Method | Pre-wired Cable, 2 m Length |
| Operation Mode | Light-ON / Dark-ON |
| Light Source | Red LED (670 nm) |
| Response Time | 1 ms max. |
| Power Supply | 12 to 24 VDC |
| Degree of Protection | IP67 |
| Material | PBT (polybutylene terephthalate) |
The Omron E3Z-LS61 2M is widely identified as an Omron distance-settable photoelectric sensor designed for accurate object detection where background influence must be minimized. With background suppression sensing, NPN output configuration, and a fast 1 ms response time, the sensor ensures consistent switching performance in high-speed automation systems. Its 200 mm maximum sensing distance enables reliable detection of objects with varying colors and surface finishes.
In industrial applications, the E3Z-LS61 2M photoelectric sensor is commonly used in packaging machines, conveyor systems, assembly lines, and inspection stations. The compact cuboid housing allows installation in space-constrained panels, while the 2 m pre-wired cable supports quick and secure electrical connection. The IP67-rated enclosure protects the sensor from dust, moisture, and vibration, making it suitable for continuous industrial operation.
Designed for long-term reliability, the E3Z-LS61 operates within a wide ambient temperature range and incorporates built-in protection circuits for reverse polarity, output short-circuit, and mutual interference prevention. Its red LED optical system combined with manual sensitivity adjustment ensures stable detection performance, making this distance-settable photoelectric sensor a dependable choice for demanding industrial environments.