Log-linear amplifier range 0.0000000001 to 0.0001 amps; 6 full scale sensitivities 0.0001 amps, 0.00001 amps, 0.000001 amps, 0.0000001 amps, 0.00000001 amps, 0.000000001 amps; 2 sample inlets for direct sampling; output 0-1 v and 0-100 mv; dimensions 19 by 12.25 by 20 in.; 110 vac; real time response