What is the accuracy of the GPS? Follow The GPS horizontal position accuracy is 2.5m. Related articles How accurate are the iSTAR Pulsar GPS timestamps What is the difference between iSTAR Pulsar and iSTAR Pulsar+? How do I install a license/firmware update file to my iSTAR Pulsar+ unit? Can I operate iSTAR Pulsar using the Google Street View app? Can I use iSTAR Pulsar indoors?