"110/220 VAC 50/60 CYCLE; 19.000 IN. LG,8.500 IN. W,5.00 IN. H; 51 CHANNELS INCLUDING 1 OVERFLOW; 1023 EVENTS PER CHANNEL,CHANNEL ACCURACY: CHANNELS 0 TO 10 PORM 1 CHANNEL,CHANNELS 11 TO 51 PORM 0.5 CHANNEL; INCLUDES ADJUSTABLE THRESHOLD AND DATA ACCEPTANCE WINDOW"