The HP9IV is a new secure controller from STEC with a full-featured alphanumeric keyboard that runs on the Android operating system. The controller is designed for collecting and visualizing field measurement data using RTK GNSS receivers. Comes with South SurPad software. Designed to work with GNSS RTK receivers. HP9IV runs on the Android 11 operating system, is equipped with a powerful Octa-core 2.0 GHz processor and 3 GB of RAM. Protection against moisture and dust of the controller meets the IP67 standard, Li-ion rechargeable battery with a capacity of 6400 mAh, provides a working time in the field up to 15 hours. The HP9IV has a slot for two SIM cards (4G).