The Beaver crawlers are an extremely versatile and rugged series of tethered ROVs (Remotely Operated Vehicles) specially designed for traversal in pipelines and drains. They are fully submersible and underwater operable. Very high strength to weight ratio is the main design criteria of the Beaver ROVs. They are capable of traversing through silt and muck depending on their size and strength. The Beaver series crawlers are the unanimous choice of all water and sewer contractors across India for inspection and maintenance works of sewer and water pipelines.