Trimble Spectra Precision Laser DDS300 Depth Display System 3.0 is for backhoe-loaders, mini-excavators and smaller excavators. Laser and angle sensors provide real-time position information for the bucket. Wireless connectivity between the sensors on the boom and the in-cab control box eliminate cables, reducing install time. The system can be moved between machines in as little as 30 minutes, the company says. Real-time grade guidance is displayed on the 7-inch in-cab display, allowing the operator to work faster and with better accuracy.