The ETC Sensor Touring Rack (SP4820) is an industry-standard, heavy-duty power distribution and dimming system built specifically to withstand the rigors of live concert tours, theatrical roadshows, and large-scale event productions. Designed with a high-density modular architecture, this road-ready rack provides lighting technicians with safe, reliable, and highly stable power control for extensive configurations of conventional fixtures and stage equipment. It is packaged in a welded structural enclosure complete with heavy-duty casters and protective covers, making it optimized for rapid load-ins, truck packing, and fast-paced venue changeovers. 

At the heart of the system is ETC's advanced power control processor (such as the CEM+ or CEM3 platform), which enables flexible network integration and real-time remote system monitoring. The rack features an integrated, illuminated patch bay and a versatile output panel that accommodates a variety of common multi-pin and discrete branch theatrical cabling standards. With integrated safety mechanisms—including fully magnetic circuit breakers, redundant data paths, and low-noise active cooling systems—the SP4820 serves as a foundational power backbone trusted by touring crews worldwide.