"FIXED SITE; C/O,CHOICE OF A FLAME-PHOTOMETRIC DETECTOR (FPD) OR A FLAME IONIZAT ION DETECTOR; SINGLE CHANNEL ELECTROMETER, SAMPLE PUMP, COMPRESSED GAS REGULATORS; CONTROLLER W/CONNECTORS FOR SERIAL AND PARALLEL COMMUNICATION, DISK DRIVE, AND KEYBOARD; CABLES, MANUAL, EXPENDABLE SUPPLIES; MEASURES PERMEATION TOXIC CHEMICALS; DETERMINESCONCENTRATION OF TOXIC COMPOUNDS, AND TOXICS FROM CONTAMINATED SURFACES; PLUG-IN CHROMATOGRAPHIC MODULES"