Oper power: one 9v battery; 2.9 in. W, 5.5 in. Dp, 1.5 in. H; 24 lead enable/disable dip-switches; 52 break-out/jumper pins; 12 leads permanently monitored w/ 2 color leds; 1 extra patchable two-color led; built-in leads for forcing leads high or low; hand held
