The GPS 18 5Hz is an OEM GPS sensor for use in machine control, guidance and agricultural applications that require 5 Hz position and velocity reports from a small, highly accurate GPS receiver. The GPS 18 5Hz stores configuration information in non-volatile memory so it starts up quickly each time you use it. It also has a real-time clock and raw measurement output data for sophisticated, high-precision dynamic applications. For extra precision, it offers 5 Hz Measurement Pulse Output with rising edges that align to precise 0.2 second increments of UTC time, as long as the receiver has reported a valid and accurate position within the past 4 seconds.