Optical Level Switch

Optical Level Switches are advanced liquid detection sensors that operate using infrared light reflection technology for high-precision level sensing. Each unit integrates an infrared LED and a light transistor behind a prism tip—when exposed to air, the light reflects internally and returns to the transistor, while immersion in liquid causes refraction, reducing the returned signal. This principle allows highly accurate point-level detection for water, oil, and chemical applications. As a leading Optical Level Switch Manufacturer and Supplier in Ahmedabad, Aranka Instruments LLP delivers compact, durable, and maintenance-free designs perfectly suited for industrial automation, HVAC, and water-treatment systems.

Advantages and Disadvantages of Optical Level Sensors

The main advantages of optical level sensors are their compact size, their lack of moving parts, and their low cost. However, while extremely accurate for point level detection in high-stress environments, they’re less useful for continuous level measurement. In addition, optical level switches are unsuited for applications where top mounting is necessary; when top-mounted, the accuracy optical level sensors may be adversely affected by moisture condensation.