"THERMAL CONDUCTIVITY TYPE DETECTOR,4 FILAMENT WIRE; SINGLE COLUMN; 115 VAC,50/60 HZ,1 KW; COLUMN OVEN 8 IN. W,7.5 IN. H,6.5 IN. D,TEMP RANGE AMBIENT TO 400 DEG C; ISOTHERMAL PROPORTIONAL TEMPERATURE CONTROLLER; SOLID STATE BRIDGE/POWER SUPPLY,0-24 VDC OUTPUT,0-300 MA; OVERALL DIMENSIONS 17 IN. W,15.75 IN. H,16.25 IN."