The Radiodetection Standard 33kHz Sonde (10/SONDE-STD-33) is a self-contained transmitter used to locate non-conductive pipes and ducts. Measuring 39mm x 105mm, it connects to a Flexrod or drain rod and offers a 5-meter depth range. Powered by a single AA battery, it provides 20 hours of continuous signal for accurate tracing.
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The 10/SONDE-STD-33 is the most versatile sonde in the Radiodetection range, engineered for the daily demands of drainage and groundworker contractors. While traditional cable locators find metallic utilities, this 33kHz sonde allows you to "see" inside plastic, clay, and concrete pipes. It features an M10 male thread, allowing it to be easily fitted to a variety of rods or flexible pushrods to navigate through the pipe system. Built for harsh environments, the sonde is waterproof up to 2 bar (20-meter depth of water), making it reliable in wet sewer conditions. When propelled through a pipe, it emits a powerful electromagnetic field that can be pinpointed from the surface using any Radiodetection C.A.T4 or RD series locator set to Genny/Sonde mode. Its 5-meter detection range makes it perfect for standard residential and commercial drainage surveys. For groundworkers, this ensures excavation is precise, reducing the risk of damaging assets or over-digging on site.