Optical sensors respond in under a second, delivering real-time liquid level data for fast process control. Optional firmware helps prevent false triggers caused by liquid sloshing.
SST designs, tests, and manufactures over 300,000 liquid level sensors annually, demonstrating our commitment to quality, scale, and innovation.
We offer the industry’s most comprehensive range of optical liquid level sensors, engineered to detect the presence or absence of virtually any oil- or water-based liquid. Whether for critical monitoring or control applications, our sensors deliver reliable, repeatable performance where liquid status truly matters.
SST Sensing’s optical liquid level switches are solid-state, eliminating unreliable moving parts for enhanced durability. Compact and precise, they protrude minimally into applications and can detect even small amounts of liquid, offering reliable performance across varied environments.
These sensors exhibit low sensitivity to ambient light and are unaffected by foam in air or small bubbles in liquid. They are engineered to operate in wide temperature ranges and withstand harsh liquid media, ensuring robust, long-lasting functionality even in challenging conditions.
If our standard switches don’t meet your needs, we provide customization options for housings, cabling, and connectors to suit your specific applications. Additionally, bespoke features such as PWM outputs or insensitivity to moving liquids can be integrated, delivering a solution tailored to your unique requirements.
Our experienced engineers are ready to discuss your application requirements and provide expert guidance.