The S9 MiniSonde is a small 9mm (0.35”) diameter transmitter designed to be inserted into non-metallic pipes or ducts, and enables operators to trace the route of small diameter pipes or ducts and to precisely locate any blockages. The flexibility of the S9 Minisonde allows the sonde to travel around bends or pass existing cables, while durable design and construction helps to protect the S9 Minisonde from damage when travelling around bends or when encountering obstacles within the duct. The S9 MiniSonde is the ideal accessory for small diameter ducts, where flexibility and strength are required.