Used (mix of 2013 & 2014) SL-Lasers, model PD-6, green laser system. Six head system with PC in stand-alone enclosure & two spare heads that need diodes and galvos. (Parts are available for this model by OEM at an additional cost.) Lasers project roof truss, floor truss and wall panel design images accurately onto building surface, for faster setup and fabrication times. Each laser head provides 20′ projection length (coverage varies based on ceiling heights). Includes system computer, cables, mounting hardware for attachment to customer’s structure. Works with each connector plate manufacturer’s design software. Modular nature of the laser heads allows for easy, future expansion of system length. 120 volt, 1 phase. SL-Lasers suggests that the laser heads be sent to their office for inspection and repair prior to installation. OEM installation and support available at an additional cost.