Tersus David is a GNSS receiver designed for global markets. For surveyors, the David receiver delivers high-precision signal reception that's integrated in a small and light package. The David GNSS receiver supports GPS L1/L2, GLONASS G1/G2 and BeiDou B1/B2. With this GNSS receiver, users can take full advantage of common platforms such as smartphones, tablets or traditional handheld modules to collect data. Coupled with an external antenna, survey app and post-processing software, the David GNSS Receiver is a low-cost solution for survey applications, including real-time RTK positioning and data collection for PPK. A 4GB on-board EMMC card makes it easy to save data for post processing. The compact size, IP67-rated enclosure and versatile accessories alleviate most of the inconveniences encountered in field work.