Compact, IP67-rated photoelectric sensor with built-in amplifier and red LED light. Dark-on operation, 200mm sensing range, and pre-wired with 2m cable.
Product ModelE3T-SR42-S 2M
Product ID66099
Stock on Request
Last updated: 8/29/2026
Key Features
1
1. Compact DesignThe OMRON E3T-SR42-S 2M features an ultracompact design, making it ideal for applications where space is limited. Its small size allows for easy integration into various systems without compromising performance.
2
2. IP67 RatingWith an IP67 rating, this sensor is highly resistant to dust and water, ensuring reliable operation in harsh environments. This makes it suitable for use in industrial settings where exposure to moisture or dust is a concern.
3
3. Built-in AmplifierThe built-in amplifier enhances the sensor's performance by amplifying the signal, which improves detection accuracy and reliability. This feature is particularly useful in applications requiring precise object detection.
4
4. Red LED LightThe red LED light (650nm wavelength) provides clear visibility and consistent illumination, ensuring accurate sensing even in varying light conditions. This feature is beneficial for applications requiring high ambient light immunity.
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
Retro-reflective
Output
NPN
5
5. Dark-on OperationThe E3T-SR42-S 2M operates in dark-on mode, meaning it only outputs a signal when no light is detected. This is particularly useful in applications where the absence of light indicates the presence of an object, such as in conveyor belt systems or robotic arms.
6
6. Pre-wired with 2m CableThe sensor comes pre-wired with a 2m cable, simplifying installation and reducing setup time. The bare end flying leads allow for easy connection to other devices, making it convenient for integration into various systems.
7
7. High Sensing AccuracyWith a sensing range of 200mm, this sensor offers high accuracy in detecting objects. The retro-reflective design ensures reliable detection even in complex environments, making it suitable for a wide range of industrial applications.
8
8. Wide Operating Temperature RangeThe sensor operates within a wide temperature range of -25°C to 55°C, making it suitable for use in various environments. This flexibility ensures reliable performance in both hot and cold conditions, extending its application range.
9
9. Low Power ConsumptionThe E3T-SR42-S 2M has a low current consumption of 20mA max., which reduces power consumption and heat generation. This feature is beneficial for applications requiring energy efficiency and minimal heat buildup.
10
10. CE CompliantThe sensor is CE compliant, ensuring it meets the essential health and safety requirements for the European market. This compliance provides assurance of the product's safety and reliability in European applications.
