O/A 4.781 PORM 0.125 IN. LG; OPER PWR RQMT DC 28V; M55 TO P71 DEG C OPER TEMP RANGE; 200 HZ PORM 10 PCT TO 300 HZ PORM 10 PCT AUDIO RANGE; 2 MIN /ON/ AND 8 MIN /OFF/ SIG DY RANGE CYCLE; 4 TO 6 HZ PORM 10 PCT INTERRUPTION RATE; HERMETICALLY SEALED; 1 CONNECTOR RECEPTACLE TYPE TERMINAL CANNON ELEC CO P/N GS02-16S1P001; HOLE MTD TYPE 4 0.173 IN. DIA MTG HOLES ON 2.5 BY 2.125 IN. MTG CTR