E3T-ST22 2M

Name: E3T-ST22 2M
Brand: OMRON
SKU: E3T-ST22 2M

The OMRON E3T-ST22 2M is an ultracompact through-beam photoelectric sensor with a 300 mm sensing distance. It offers NPN output and robust protection circuits, making it suitable for precise object detection in industrial settings.

Product ModelE3T-ST22 2M

Product ID66087

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Ultracompact DesignThe E3T-ST22 2M boasts an ultra-compact square shape, making it ideal for applications where space is limited. Its small size ensures easy integration into various industrial setups.
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2. High Sensing DistanceWith a sensing distance of 300 mm, this sensor provides reliable detection of objects, even at a considerable distance. This feature is particularly useful in applications requiring precise object detection.
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3. Robust Protection CircuitsThe E3T-ST22 2M is equipped with robust protection circuits, including output short-circuit protection, output reverse polarity protection, and power supply reverse polarity protection. These features ensure the sensor operates reliably and safely in harsh industrial environments.
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4. NPN OutputThe sensor features an NPN open collector output, which is commonly used in industrial automation systems. This output type allows for easy integration with various control systems, enhancing the sensor's versatility.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Body Type

Rectangular - Compact

Housing Material

Plastic

Supply Voltage

12 to 24 VDC

Type

Minature

Sensing Method

Through-beam

Output

NPN

5. Red LED Light SourceThe E3T-ST22 2M uses a red LED light source with a wavelength of 650 nm. This specific wavelength provides high immunity to ambient light, ensuring accurate object detection even in bright environments.

6. Operational FlexibilityThe sensor operates in a Dark-ON mode, which means it only outputs a signal when the light beam is interrupted by an object. This mode is particularly useful in applications where the presence of an object is critical for operation.

7. Environmental DurabilityThe E3T-ST22 2M is designed to operate in a wide range of ambient temperatures (-25 to 55°C) and humidity levels (35 to 85% RH). It also withstands vibrations and shocks, ensuring reliable performance in various industrial conditions.

8. Easy InstallationThe sensor comes with a pre-wired cable of 2 meters, making installation straightforward. The M2 mounting screws provide a secure and easy way to attach the sensor to your application, reducing setup time and effort.

9. High ReliabilityWith a response time of 1 ms maximum, the E3T-ST22 2M ensures quick and accurate detection of objects. Its high reliability is further enhanced by its insulation resistance of 20 MΩ minimum and dielectric strength of 1000 VAC for 1 minute.

10. IP67 ProtectionThe sensor has an IP67 rating, which means it is dust-tight and can withstand immersion in water up to 1 meter for 30 minutes. This level of protection ensures the sensor remains operational even in harsh environments.

Max Sensing Direction

Connection

Pre-wired

Cable Length

2 m

Light Source

Red LED

Operation

Dark-ON (D-ON)

Manufacturer ID