Tri-Tronics Photoelectric Sensors
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Tri-Tronics Sensors & Precision Detection from Excel Automation
Excel Automation is a trusted supplier of Tri-Tronics photoelectric sensing solutions, offering reliable, high-performance products for industrial automation, packaging, material handling, and manufacturing applications. With years of experience supporting Tri-Tronics technology, we provide customers with expert guidance, fast access to products, and real-world application support to help optimize performance and uptime.
Tri-Tronics has a long reputation for building rugged, precise, and easy-to-integrate photoelectric sensors that solve detection challenges across automated systems. Their comprehensive lineup of sensing technologies allows users to detect objects, measure distances, and monitor production with confidence.
Why Choose Tri-Tronics Sensors
Tri-Tronics and Excel Automation: A lasting partnership
Tri-Tronics photoelectric sensors are engineered for robust performance, long-term reliability, and flexible installation. Designed to handle tough industrial environments, these sensors deliver accurate detection even in demanding production conditions.
Key benefits include:
• Precise object and presence detection
• Multiple sensing modes including diffuse, through-beam, and retroreflective
• Long sensing ranges for increased flexibility
• Durable housings and connectors suited for industrial use
• Simple setup and adjustment to minimize installation time
Tri-Tronics solutions are ideal for a wide range of applications including conveyor monitoring, part presence verification, product counting, position sensing, and more.
The Excel Automation Advantage
At Excel Automation, we do more than supply products — we help you apply them effectively. Our team understands how to match Tri-Tronics technology to your specific automation challenges, providing insight from design through implementation.
When you choose Excel Automation, you get:
• Authorized access to Tri-Tronics sensors and components
• Application-oriented product recommendations
• Expert technical support and troubleshooting assistance
• Guidance on sensor selection, mounting, and setup
• Faster response times to keep production moving
We help you reduce guesswork, improve reliability, and maximize the value of your sensor solutions.
Supporting Smarter Detection & Automation
Whether you are designing a new automated line or upgrading existing equipment, Tri-Tronics sensors provide dependable detection and measurement capabilities that enhance system performance. Paired with Excel Automation’s application expertise, these sensors form a solid foundation for smarter, more reliable automation systems.
Explore our complete range of Tri-Tronics sensors and find the right components to meet your industrial automation needs.
View all Sensor Products
- About Tri-Tronics

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Showing 337–360 of 475 results
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SEPS-2
$119.00Tri-Tronics Power Supply, 24VDC, with Relay (used with 504-0066 plug in socket) [SEPS2]
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SEPS-3 ***OBSOLETE***
***This part is obsolete, contact us for replacement options*** Tri-Tronics Power Supply, 24VDC, with 2 Relays (used with 504-0066 plug in socket) [SEPS3]
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SEPS-4 ***OBSOLETE***
***This part is obsolete, contact us for replacement options*** Tri-Tronics Power Supply, 24VDC, with 1 Triac output (used with 504-0066 plug in socket) [SEPS4]
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SEPS-5 ***OBSOLETE***
***This part is obsolete, contact us for replacement options*** Tri-Tronics Power Supply, 24VDC, with 2 Triac outputs (used with 504-0066 plug in socket) [SEPS5]
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SERF1
$203.93Tri-Tronics Mark II Smarteye photoelectric sensor, Red light source, fiber optic mode, 4 pin M12 quick disconnect, NPN & PNP outputs, 24 vdc [fiber optic light guides sold seperately] Availability: normally in stock at our Cleveland and / or Kansas City warehouse [If your order is urgent, contact us for exact availability on the quantity … Continue reading SERF1
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SERKF1
$225.39Tri-Tronics Mark II Smarteye photoelectric sensor, Red light, knob adjustment, fiber optic mode (fibers sold separately), 24vdc, NPN & PNP outputs, 4 pin M12 quick disconnect Availability: normally in stock at our Cleveland and / or Kansas City warehouse [If your order is urgent, contact us for exact availability on the quantity needed]
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SERKO1
$225.39Tri-Tronics Mark II Smarteye photoelectric sensor, red light source, knob adjustment, long range diffuse mode, M12 Micro quick disconnect, 24 vdc, NPN & PNP outputs Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERKO2
$225.39Mark II Smarteye Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERKR1
$225.39Mark II Smarteye photoelectric sensor, red light source, knob adjustment, retro-reflective mode, M12 q/d, 24 vdc Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERKV1
$225.39Mark II Smarteye Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERKV1G
$233.45Mark II Smarteye Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERKWF1
$254.92Mark II W/Connector & Knob Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERO1
$203.93Tri-Tronics Mark II Smarteye photoelectric sensor, red light source, long range proximity mode, M12 quick disconnect, 24vdc, NPN & PNP outputs [SER01] Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERO2
$203.93Mark II Smarteye Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERR1
$203.93Tri-Tronics Mark II Smarteye photoelectric sensor, red light source, 24vdc, NPN & PNP outputs, retro-reflective mode, M12 quick disconnect Accessories: SEB-1 right angle stainless sensor mounting bracket SEC-15 straight, shielded sensor connector cable, 15 feet SEC-6 straight, shielded sensor connector cable, 6 feet Availability: if your order is urgent, or you need to … Continue reading SERR1
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SERV1
$203.93Mark II Smarteye Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERV1G
$211.98Mark II Smarteye Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERWF1
$233.45Spec Mark II Less Mating Cable Availability: normally in stock at our Cleveland and / or Kansas City warehouse [If your order is urgent, contact us for exact availability on the quantity needed]
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SERWO1
$216.01Mark II with Cable Connector Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERWR1
$233.45Mark II with Cable/Connector Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SERWV1G
$240.17Mark II with Cable/Connector Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SEWLF1
$269.67Mark II Smarteye Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SEWLKF1
$291.14Mark II Smarteye w/knob Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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SEWLKO1
$291.14Mark II Smarteye w/knob Availability: if your order is urgent, or you need to know the current lead time for this product, please contact us for details. Ask about possible expedite options.
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Supporting Smarter Detection & Automation









