NanoSonde MPL4-33 is Vesala’s new, world’s tiniest active sonde for small underground ducts. It is only 4.6 mm in diameter so it is optimal for calibrating 6 mm (inner diameter) fiber optic ducts and to locate their blockages, dents and other problems. MPL4-33 is flexible in the middle so it can navigate tight duct curves down to 170 mm radius.
MPL4-33 is intended to be used with the Vesala CL43 Compact Locator and other cable tracers and pipe locators working on the 33 kHz tracing frequency.