Spectra Precision EPOCH™ 10 GPS system As a surveyor, you never know what kind of demands your next job will bring ... Be ready for anything with the Spectra Precision EPOCH™ 10 GPS system. Spectra Precision's EPOCH product line is rugged, user-friendly and reliable. Designed to meet the needs of surveyors around the world, the EPOCH 10 GPS system also delivers maximum productivity, precision and affordability. A unique, integrated survey-grade L1 GPS receiver and rugged Data Collector solution providing: The industry-standard Microsoft® Windows Mobile™ operating system—meeting your needs while allowing you to manage and grow your business Robust field performance for tough, everyday surveying conditions Spectra Precision® GPS technology for reliability, quality and confidence