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"A Single Source fore Saftey Solutions"

    After introducing its first infrared solid-state proximity photoelectric control more than 28 years ago, Scientific Technologies Inc. has grown to be a leading supplier of machine safeguarding products in the United States and is recognized throughout the world for its superior products and services.

    STI products are used to keep people safe while automated factories produce a variety of complex and important products such as automobiles, computers, electronics, and food and beverages. STI safety products include safety light curtains, interlocks, relays, mats and sensors. Additionally, STI has maintained a tradition of innovation by successfully developing and applying a variety of sensing solutions for customers in the factory automation, defense and automated tollway markets.

Their Mission Statement: “To make people safe and productive.”



Safety Light Curtains

Their Wide Selection of Safety Light Curtains Guarantees You’ll Get Exactly What you Need.

Powerful Solutions for Today's Tough Automation Guarding Problems
STI provides seven safety light curtain families to solve your optical guarding needs. From compact models designed for machine locations where space is tight, to larger, robust light curtains powerful enough to guard large perimeters. STI offers you a choice, because when it comes to automation safeguarding, one size does not fit all.
Optimized Performance
STI safety light curtains are fit for use - meaning, you can select a system in the size and with the specifications you need to optimize performance. Our designs allow you to tailor a system for the lowest possible system cost, so you're only paying for what you need.
Unbiased Recommendation
Supplying such an extensive array of light curtains and controls guarantees that STI will give you an unbiased recommendation for what will work best in your particular situation. Our wide product line means you don't have to struggle to "make one fit." We don't have to force your application to fit our light curtain. From tight spaces to perimeter guarding, we provide the correct product for the job.
Ultimate Flexibility Allows for Lower Cost Solutions
The MC4700 family offers the greatest number of possible configurations, more than any other safety light curtain in the world. The MC4700 safety light curtain combines fast response time with either 12, 20, or 30 mm object resolutions. The protected height range and coverage of the MC4700 family is impressive. And now with the introduction of the "Jointed" MCJ4700, the first light curtain with an elector-mechanical joint, STI’s 4700 series is revolutionary. STI allows you to buy just what you need to buy. The MC4700, MCF4700, and MCJ4700 can be ordered with different object resolutions within a system. The various object resolutions within a and multi-segmented systems allow you to best fit the guarding to your application, and therefore you only pay for what you need.

Safety Interlock Switches

   STI safety switches are designed to work together with hinged, sliding, or lift-off guards and barriers. When the guard is opened, the power supply to the machine is disconnected.


    These products are used in many of the same industrial and manufacturing arenas as the safety light curtains including packaging and automotive

ESOP (Employee Stock Ownership Program) Fluid Power Distributors Association The International Fluid Power Society Association for High Technology Distribution National Fluid Power Association National Association of Safety Professionals