https://www.subseatechnologies.com/seco/
SECO is one of the world's leading manufacturers of surveying and global positioning equipment accessories. In this competitive niche market SECO has gained a reputation for quality and innovation.
SECO offers a wide variety of accessory products used with surveying instruments, GPS/GNSS, GIS, and construction equipment. These include telescopic poles, carrying cases, backpacks, GPS antenna poles, surveying instrument tripods, prism systems for use with electronic distance meters, construction levels, and leveling rods. SECO products are sold through a world-wide network of instrument dealers and distributors and also as custom-built, private-labeled products for OEMs.