Radiodetection Bendi Sonde - 512Hz

The Radiodetection Bendi Sonde operating at 512Hz is a flexible, battery-powered transmitter designed for insertion into non-metallic pipes, drain lines, and conduit runs to enable surface detection of the pipe route using a compatible above-ground locator receiver. Standard electromagnetic pipe locators cannot detect non-metallic pipes because these materials contain no conductor for signal induction. The Bendi Sonde solves this by becoming the signal source inside the pipe, allowing the surface operator to track the sonde position along the buried route using a 512Hz-compatible receiver.

The sonde transmitter body uses a flexible construction that bends through standard pipe bends and directional changes without requiring removal and reinsertion at each change of direction, distinguishing it from rigid sonde designs that require straight pipe runs for insertion. Outer diameter on the Bendi Sonde runs between 18mm and 33mm depending on the model variant, with the smaller diameter versions accessing pipes from 50mm nominal bore upward. Additionally, the 512Hz operating frequency matches the sonde tracking mode on Radiodetection RD and GC series locator receivers, allowing operators already carrying compatible locator equipment to use the Bendi Sonde without additional receiver hardware at the site.

Battery type uses standard alkaline cells with operating duration between 10 and 40 hours depending on sonde model and battery capacity, providing sufficient runtime to complete a full drain survey or pipe tracing session without battery replacement mid-task. The sonde end fitting connects to standard drain rods or push rod systems, allowing the survey team to drive the sonde through the pipe bore from the access point using rod sections rather than relying solely on water flow to carry the transmitter through the system. Furthermore, detection depth above ground reaches between 3 and 6 meters on compatible Radiodetection receiver units, covering typical burial depths of domestic drain and service pipe installations across urban areas in Pakistan.

Signal output remains consistent through plastic, clay, concrete, and bitumen pipe materials, with attenuation varying by soil conductivity and moisture content around the pipe. Moreover, the Bendi Sonde fits standard Radiodetection accessory kits and ships with a carry pouch, spare battery set, and connection adapter for push rod attachment to simplify field kit preparation before site deployment.

Tactical Supply Pakistan supplies Radiodetection Bendi Sondes to drainage contractors, municipal sewerage survey teams, civil engineering inspection crews, and utility maintenance operators requiring flexible non-metallic pipe route tracing capability across drain and service pipe survey work throughout Pakistan.