Our product is a cutting-edge sensing platform, ideal for miniaturized systems. Unlike traditional bulky and expensive refractometers, our sub-mm-sized fiber sensing probe delivers precise refractive index, concentration, and temperature measurements in hard-to-reach spaces. Paired with an affordable readout unit, this compact, cost-effective innovation provides high-performance sensing for emerging technologies such as microreactors, lab-on-chip, organ-on-chip, and microfluidic systems.