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SMD Sensors is no longer offering the OS950 optical sensor for sale online. We have launched a series of new optical sensors on our float switch focused site fluidswitch.com. The OS3 Industrial Optical Switch offers comparable features to the OS950 and can be used in the same applications.

Please visit the OS3 page for more information. 


The OS950 miniature optical level sensor is distinguished by its polysulfone polymer housing and lack of moving parts. This plastic level switch is ideal for point level monitoring in medical diagnostic equipment, dialysis systems, sterilizers and washers, and other OEM industrial and medical applications.

Built-in optical electronics provide a switched output level sensor that can sense the presence or absence of fluids in temperatures up to 125°C and pressures up to 250 PSIG.

Our optical level sensors can be custom designed or modified to meet your specific application requirements. Contact us to find out more and schedule a free consultation.

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