The Topsky Tianlong Tantu 4W is a compact, maneuverable firefighting robot that combines active suppression with reconnaissance and environmental sensing on a single four-wheel-drive chassis. An onboard water and foam fog cannon reduces heat and knocks down flames while the platform gathers on-scene data, allowing crews to apply extinguishing agent from a safer standoff distance. Its integrated sensor suite covers flammable-gas detection, toxic-gas detection, temperature and humidity monitoring, and camera-based video acquisition, with optional connection to a cloud platform for remote monitoring. At roughly 747 x 695 x 432 mm and about 58.2 kg, it is light enough to support one- or two-person handling depending on procedures and accessories.

Beyond suppression, the Tantu 4W can pull hoses and assist with fire-scene tasks that benefit from mechanical traction and remote operation, drawing on a traction force of about 5000 N and a hose-drag distance of up to 80 m to stage or reposition lines without exposing personnel to heat, smoke, or explosion hazards. Its mobility profile suits mixed indoor and outdoor response zones, including wet floors, shallow standing water, and debris. Typical applications include industrial and petrochemical fire response, warehouses and manufacturing halls, and tunnels or confined corridors where a full-size firefighting robot would be too large or slow to deploy.