Trimble lm80 handheld controller the rugged trimble controller lets you carry, manage, work with, and lay out your jobsite blueprint in a digital format. On the jobsite the wlan feature allows you to connect wirelessly to the robotic total station, eliminating cables and providing maximum flexibility as you move around the site. In addition the controller hardware connects to a wireless network to enable the transfer of data and information between the office and field. Reducing delays associated with travel and ensuring field crews have the most up-to-date design information the core of the connected site the pocket-sized trimble lm80 layout manager lets you carry, manage, work with, and lay out your job site blueprint. This convenience, combined with the power of wireless communication for design updates, a common user interface and specialized software make the lm80 a revolutionary tool and the heart of the connected construction site.