When sourcing a Raman Spectrometer, you must prioritize Laser Wavelength (e.g., 532nm, 785nm, or 1064nm) to balance signal strength and fluorescence interference. Spectral Resolution is critical; for most chemical identification, a resolution of <8 cm⁻¹ is standard. Additionally, evaluate the Detector Type, such as a TE-Cooled CCD, which significantly reduces thermal noise for high-sensitivity measurements. For portable applications, ensure the device has a battery life of >4 hours and a ruggedized housing.