The price of a linear displacement sensor varies widely because it is not a single product. Small potentiometric models may cost $20 to $80. Standard LVDTs for industrial use often range from $100 to $400. High-precision magnetostrictive, eddy current, or laser sensors can cost $500 to $2,000 or more. Specialized units for extreme temperatures, high vibration, or hazardous areas may exceed $3,000.

Several factors drive the price. Measuring range is one. A 10 mm sensor costs less than a 1,000 mm unit. Accuracy and linearity also matter. A basic sensor with 0.5% full scale is cheaper than one with 0.05% or better. Output type affects cost. Analog 0-10 V, 4-20 mA, and digital SSI, CANopen, or IO-Link options add electronics and configuration. Construction materials matter. Stainless steel, sealed IP67/IP68 housings, and pressure-rated designs cost more.

To estimate your budget, define the application first. For simple position feedback in packaging or automation, a low-cost sensor may be enough. For factory automation, robotics, and CNC machines, choose a reliable industrial model with repeatable accuracy. For research, metrology, or semiconductor equipment, high-resolution sensors are often necessary. A cheaper sensor can create downtime, scrap, and replacement costs if it fails early or lacks needed precision. In short, a linear displacement sensor can cost from about $20 to several thousand dollars. The right price depends on range, accuracy, output, environment, and support.