ट्रिम्बल आर3 जीपीएस

The Trimble R3 GPS system is a complete L1 GPS post processed solution from the industry leader in GPS surveying technology.
Combining an L1 GPS receiver and antenna, rugged handheld controller, and easy-to-use field and office software, the Trimble R3 system brings precise sub-centimeter control to your site, establishes new localized control, and collects topographic data. The system operates without line-of-sight between points, and it can operate day or night in any weather.