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Photo Sensor Supplier
A Photo Sensor, also known as a Photoelectric Sensor, is an electronic device that detects the presence, absence, or distance of an object using a light beam (infrared, visible, or laser). When the light emitted from the sensor is interrupted or reflected by an object, the sensor detects this change and sends an electrical output signal.
SCB Industries is a trusted Photo Sensor supplier in Kolkata, West Bengal, Odisha, Bihar, Chhattisgarh, Assam, Gujarat, Pune, and Vapi, offering high-performance sensors suitable for industrial automation, packaging, and process control. Our sensors are known for accuracy, fast response time, and long service life, making them ideal for diverse industrial applications.
| PHOTOELECTRIC SENSOR | ST-E12 | ST-G16 | ST-G18/ST-E18 | ST-G30 | |||
| Detection Distance | 15cm | 10cm | 30/50/300cm | 70cm | |||
| DIFFUSE | 6-36VDC | PNP/NPN | NO | ST-G16-3A10PA/NA | |||
| PNP/NPN | NC | ||||||
| PNP/NPN | NO+NC | ST-E12-3015 PC/NC | ST-G/E18-3A30 ST-G/E18 3A50 ST-G/E18- 3m PC/NC | ST-G30-2A70 PC/NC | |||
| AC 90-250VAC | SCR Control-Label Silicon | NO | ST-E12-2A15A | ST-G/E18-2A30A | ST-G30-2A70A | ||
| NC | ST-E12-2A15B | ST-G/E18-2A30B | ST-G30-2A70B | ||||
| Relay Output | |||||||
| Detection Distance | 1Mtr | 2Mtr | 3Mtr | ||||
| RETRO- REFLECTIVE | 6-36VDC | PNP/NPN | NO | ||||
| PNP/NPN | NC | ||||||
| PNP/NPN | NO+NC | ST-E12-3B1R | ST-G18-3B2R | ST-G30-3B3R | |||
| AC 90-250VAC | SCR Control-Label Silicon | NO | ST-E12-2B1RA | ST-G18-2B2RA | ST-G30-2B3RA | ||
| NC | |||||||
| Relay Output | |||||||
| Detection Distance | 3Mtr | 5Mtr | 10Mtr | ||||
| THRU BEAM | 6-36VDC | PNP/NPN | NO | ||||
| PNP/NPN | NC | ||||||
| PNP/NPN | NO+NC | ST-E12-3C3 PC/NC | ST-G/E18-3C5 PC/NC | ST-G30-3C10 PC/NC | |||
| AC 90-250VAC | SCR Control-Label Silicon | NO | ST-G/E18-2C5LA | ST-G30-2C10LA | |||
| NC | ST-G/E18-2C5LB | ST-G30-2C10LB | |||||
| Relay Output | |||||||
| DC/SCR/Control Output | DC:200mA | DC:200mA. AC:300mA | DC:200mA, AC: 3–Ma, Relay:2A | |
| DC/AC Consumption Current | DC<15mA | DC<15mA, AC: 10mA | ||
| DC/AC Response Time | DC<2mS | DC<2mS, AC<20mS | ||
| Directional Angle | 3″-10° | |||
| Standard Detected Object | Transparent or Opaque Body | |||
| Working Environment Temperature | +25°C ~ +55°C | |||
| Intensity of Illumination of Working Environment | Sunlight Under 10000LX, Incandescent Lamp Under 3000LX | |||
| Shell Material | Metal | Plastic | Plastic,Metal | Plastic |
| Protection Grade | IP54 | IP54 | IP66 | IP66 |
ST – E12
ST – G16
ST – E18 & ST – G18
ST – G30
| PHOTOELECTRIC SENSOR | ST-G50 | ST-G56 | ST-G63 | ST-J SERIES | ST-SEN SERIES | ST-E3JK SERIES | |||
| Detection Distance | 50cm | 1Mtr | 50cm | 30cm | |||||
| DIFFUSE | 6-36VDC | PNP/NPN | NO+NC | ST-G50-3A50PC/NC | |||||
| PNP/NPN | Open Collector | ST-J1M-DDT | ST-SEN500-DDT | ||||||
| AC 90-250VAC | SCR Control-Label Silicon | Relay Output | ST-SEN500-DFR | ST-E3JK-DS30M1 | |||||
| Detection Distance | 5Mtr | 3Mtr | 3Mtr | 4Mtr | |||||
| RETRO-REFLECTIVE | 6-36VDC | PNP/NPN | NO+NC | ST-G50-3B5PC/NC | |||||
| PNP/NPN | Open Collector | ST-J3M-PDT | |||||||
| AC 90-250VAC | SCR Control-Label Silicon | Relay Output | ST-SEN5M-MFR | ST-E3JK- R4M1 | |||||
| Detection Distance | 10Mtr | 1cm | 3cm | 10Mtr | 10Mtr | 5Mtr | |||
| THRU BEAM | 6-36VDC | PNP/NPN | NO+NC | ST-G56-3E01PC/NC | ST-G63-3E03PC/NC | ||||
| PNP/NPN | Open Collector | ST-J10M-TDT | |||||||
| AC 90-250VAC | SCR Control-Label Silicon | Relay Output | ST-G50-4C10JC | ST-SEN10M-MFR | ST-E3JK- R5M1-N | ||||
ST-G50
ST-G56
ST-G63
ST-J SERIES ALL
ST-SEN
ST-E3JK
Types of Photo Sensors We Offer
- Diffuse Type Photo Sensor– Detects objects when light reflects off the target and returns to the receiver.
- Retro-Reflective Type– Uses a reflector to detect objects when light is interrupted.
- Through-Beam Type– Consists of separate transmitter and receiver units for long-distance detection.
- Laser Photo Sensor– High-precision sensor for small object detection and positioning.
- Fiber Optic Photo Sensor– Designed for precise sensing in compact or high-temperature areas.
Where Can You Use Photo Sensors?
Photo Sensors are widely used in automation systems where fast and reliable object detection is crucial. Typical applications include:
- Packaging Industry:Counting, labeling, and object detection on conveyors.
- Textile & Printing Industry:Web edge detection and color mark sensing.
- Food & Beverage Industry:Bottle and container detection on production lines.
- Material Handling:Object detection on conveyor belts and elevators.
- Robotics & Automation Systems:Positioning, safety, and obstacle detection.
- Pharmaceutical Industry:Capsule counting and labeling verification.
- Automotive Industry:Component detection and assembly automation.
Key Benefits of SCB Industries’ Photo Sensors
- High-speed detection– ideal for rapid production lines.
- Non-contact operation– ensures long life and minimal maintenance.
- Wide detection range– from a few millimeters to several meters.
- Excellent accuracy and repeatability– ensures reliable operation.
- Compact and durable design– suitable for harsh industrial environments.
- Resistant to dust, moisture, and vibration– IP65/IP67 protection available.
- Easy installation and alignment– supports flexible mounting.
Technical Details
| Parameter | Specification |
| Sensing Range | 5 mm to 20 m (depending on model) |
| Light Source | Infrared / Red LED / Laser |
| Operating Voltage | 10V to 30V DC or 90V to 250V AC |
| Output Type | PNP / NPN, NO / NC |
| Response Time | <1 ms |
| Protection Rating | IP65 / IP67 |
| Operating Temperature Range | -25°C to +70°C |
| Housing Material | Plastic / Stainless Steel |
| Connection Type | Cable or Connector Type |
Why Choose SCB Industries?
At SCB Industries, we are committed to providing advanced Photo Sensors that ensure reliable, high-speed performance in all industrial environments. Our products are sourced from leading manufacturers and undergo strict quality checks for durability, precision, and stability.
With a strong presence in Kolkata, West Bengal, Odisha, Bihar, Chhattisgarh, Assam, Gujarat, Pune, and Vapi, we ensure timely delivery, competitive pricing, and excellent technical support. Whether you need sensors for counting, detection, positioning, or automation control, SCB Industries offers the perfect solution tailored to your requirements.
Guaranteed Satisfaction: Your Reliable Partner for Photo Sensors
SCB Industries stands as a reliable and reputed Photo Sensor supplier across India. We combine innovation with quality to deliver sensors that improve automation accuracy, reduce downtime, and enhance production efficiency.




