Philtec is a company specializing in the design and manufacture of reflective type Fiber Optic Sensor Systems for measuring linear distance, displacement and vibration. Philtec sensors are built in the USA and sold thru a global network of technical sales agents. With 30 years of product development and experience, Philtec engineers are highly qualified to help customize sensor systems meeting special requirements. These are retro-reflective type optical devices. The sensors use bundled optical fibers to transmit light to and receive reflected light from target surfaces. The intensity of received light is processed and used to measure linear distances from 0 to 75 mm away. Engineering solutions for extreme environments are a company niche. Call or email us today! Our engineers are ready to help you solve your measurement problems. 1-800-453-6242 ∙ 1-410-757-4404 ∙ sales@philtec.com