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Diffuse photoelectric sensors with background suppression detect objects by sensing reflected light. They offer reliable detection by ignoring surrounding objects and provide a stable sensing distance regardless of target color. Some models use blue light to accurately sense dark or shiny targets.
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Background Suppression
Diffuse photoelectric sensors with background suppression detect object presence by emitting a beam of light, typically from an LED, toward a target and sensing the reflected beam. These sensors work similarly to standard diffuse sensors but are designed to distinguish light from the intended target and to filter out reflections from background objects. They are effective in environments with reflective backgrounds but cost more than other photoelectric sensing technologies and require more setup time.
For part listing and specifications, go to Shop Now
18mm Tubular
Newest Additions!
- Contrinex IO-Link smart photoelectric sensors
Standard 18mm tubular photoelectric sensors offer performance and value for a wide range of applications and include models featuring 316L stainless steel housings, IP69K protection ratings for Food and Beverage applications, and options for dark and shiny object detection.
- AchieVe, AutomationDirect, Contrinex, and ProSense brands
- Sensing distances up to 250mm
- Complementary light-on/dark-on, light-on, and selectable light-on/dark-on operating modes
- Axial or right-angle optical head options
- Class 1 laser, Class 2 laser, infrared, or visible red light emission
- Plastic, metal, or stainless steel housing options
- Contrinex sensors are made in the USA; their PNP models offer IO-Link v1.0 compatibility
- AC or DC operating voltage options
- IP67 or IP68/69K protection ratings
Contrinex smart IO-Link 18mm photoelectric sensors offer advanced functionality with multiple sensing modes and can be configured to provide rich data and diagnostics. Key features include user-configurable outputs, embedded predictive maintenance, and high-speed internal decision-making that eliminates dependence on a centralized PLC.
- Sensing distances up to 250mm [9.84 inches]
- Scaled measurement output via IO-Link provides the target location within the sensing range
- Selectable light-on/dark-on operating modes
- One PNP output and one configurable discrete/IO-Link output
- 304 stainless steel housings
- IP67 protection rating
Starting at
(LHR-M18PA-PMK-101)
30mm Tubular
Eaton E58 series harsh duty photoelectric sensors are built with stainless steel, PVDF, and tempered glass components that are mechanically assembled using Vitron seals to ensure resistance to chemicals and moisture intrusion. From harsh industrial solvents and high-pressure washdowns to heavy vibration and shock, these sensors are designed to withstand the toughest environments.
- Sensing distances up to 280mm
- Light-on or dark-on operating modes
- High excess gain allows accuracy despite contamination in the environment
- Visible red light emission
- AC or DC operating voltage options
- Suitable for harsh duty and Food and Beverage applications
- AC micro ½"-20 UNF thread or M12 quick-disconnect
- IP69 protection rating
Starting at
(E58-30DP150-GDP)
8mm Tubular
ProSense F8 series 8mm tubular sensors feature compact stainless steel housings suitable for small space applications.
- Sensing distances up to 30mm
- Light-on operating mode
- Adjustable or fixed background suppression
- Visible red light emission
- 450 Hz switching frequency
- 10 to 30 VDC operating voltage
- M8 quick-disconnect
- IP67 protection rating
Priced at
(F8RS-LN-1F)
Rectangular
Newest Additions!
- Contrinex IO-Link smart photoelectric sensors
Standard rectangular photoelectric sensors offer accurate and reliable object detection partly due to their flat surfaces which allow for precise alignment and stable mounting, while built-in mounting holes simplify installation. Select models employ time-of-flight laser technology to detect objects while avoiding false positives.
- AutomationDirect, Contrinex, ProSense, and Wenglor brands
- Sensing distances up to 1m
- Complementary light-on/dark-on, light-on, and selectable light-on/dark-on operating modes
- Blue, Class 1 red laser, infrared, or visible red light emission
- Blue light models provide accurate dark and shiny object detection
- Contrinex sensors are made in the USA and ECOLAB-approved for use in hygienic areas
- Stainless steel models are suitable for harsh duty and Food and Beverage applications
- Select models offer IO-Link compatibility
- 10 to 30 VDC or 10 to 36 VDC operating voltages
- Up to IP69K protection ratings
Contrinex smart IO-Link rectangular photoelectric sensors deliver powerful, decentralized sensing. Their multiple sensing modes and user-configurable outputs allow for highly flexible operation. These sensors are engineered for autonomy, featuring high-speed internal decision-making that removes the need to rely on a central PLC. Furthermore, they are equipped to provide rich diagnostic data and embedded predictive maintenance capabilities right from the sensor itself.
- Sensing distances up to 300mm [11.81 inches]
- Scaled measurement output via IO-Link provides the target location within the sensing range
- Selectable light-on/dark-on operating modes
- One PNP output and one configurable discrete/IO-Link output
- 304 stainless steel housings
- IP67/68/69K protection ratings
Starting at
(LHR-C23PA-PMS-101)
Small Space Rectangular
Autonics and ProSense small space rectangular photoelectric sensors feature compact housings that are easy to install in tight spaces. These robust sensors offer accurate sensing, fast response times, and high performance for challenging industrial applications.
- Sensing distances up to 30mm
- Offering ultra-thin sizes down to a 3.7mm thickness (4.6mm including lens)
- Light-on or dark-on operating modes
- Visible red light emission
- 10 to 30 VDC or 10.6 to 26.4 VDC operating voltages
- 2m axial cable and M8 quick-disconnect styles
- Plastic or metal housings
- IP67 protection rating
Starting at
(BTF15-BDTL)
Square
Wenglor OPT series standard duty square photoelectric sensors provide a small spot diameter and are offered in sturdy plastic or polycarbonate housings. Select models employ time-of-flight laser technology to reliably detect the presence of an object while avoiding false positives.
- Sensing distances up to 3m
- Complementary light-on/dark-on operating mode
- Class 1 laser, visible red, or blue light emission
- Blue light models accurately detect dark and shiny objects
- Select models offer IO-Link compatibility
- 10 to 30 VDC or 15 to 30 VDC operating voltages
- M12 quick-disconnect
- IP68 or IP67/68 protection ratings
Starting at
(OPT2153)
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