When sourcing fiber optic pressure sensors (such as FBG or Fabry-Perot types), you must prioritize Sensitivity and Measurement Range to ensure they match your specific application. Key metrics include Pressure Resolution (typically <0.1% FS), Operating Temperature Range (-40°C to +300°C or higher for specialized industrial use), and Wavelength Accuracy. For harsh environments, ensure the sensor has High Electromagnetic Interference (EMI) Immunity, which is a primary advantage of fiber technology over electronic sensors.