*5351B / 10 Hz to 26.5 GHz  Microwave Frequency Counter
 

-Frequency : 10Hz to 26.5GHz
-Resolution : 1Hz 
-Sensitivity : -40dBm 
-Input A : 500MHz to 26.5GHz
-Input B : 10Hz to 525MHz
-1GHz/s tracking speed, 60mS acquisition time