Marsh & Associates uses the latest and most advanced technology in remote sensing units. Designed and constructed in-house our units can be modified and built to your specifications. We specialize in equipment that is designed to read full and half duplex standard 134.2 kHz PIT tags. Designs include boat deployed completely submersible units as well as shore serviceable solar powered multi-antenna arrays. Marsh & Associates combined PIT scanning and database management expertise is unmatched in the region.