What are the Different Features of PID Analyzers? For air, water, and process applications PID analyzers develop sensors. To identify compounds PID- Analyzer is a multi-gas analyzer with a Photo Ionization Detector. Volatile organic compounds such as Benzene, Xylene, and Ethyl Benzene it has a highly sensitive detection and identification. PID analyzers offer manual and automatic analysis and do not show any interference from humidity. With the sensitivity in the ppb range, PID cells are specially designed and are used in the system.