... 4.8digits LED display MCH Frequency Counter,HC-F1000C/HC-F1000L Frequency Counter Features Range HC-F1000C:1Hz~1GHz,Max.up to 1 ... .5GHz HC-F1000L:10Hz~1GHz,Max.up to 1.8GHzPeriod,totalize measurement ... are subject to change without prior notice. MCH Frequency Counter, HC-F1000L digital frequency counter, from 10Hz-1000MHz continuously variable, max ...