• For tracing ducts, pipes and sewers and blockages
• Smallest in the market: Diameters starting from 4.6mm
• For telecom and electric installation, civil engineering etc.
• Transmitting frequencies 33kHz and 512Hz

Vesala produces the smallest sondes in the industry. Small
sondes are especially intended for calibrating fiber optic
microducts and locating their blockages e.g. before jetting
fibers.