A frequency counter is a mechanism, which determines the quantity of oscillations per set interval of time. The standard time limit utilized in such devices is one second, however custom intervals may be used as well. Oscillations are quantified during set periods, displayed, and then reset. Frequency counters can work directly with electric signals, but when needed - they can count other data with the aid of special devices called transducers. On MegaDepot you can buy frequency counters manufactured by the best companies in the industry.