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FD-20 | 512 Hertz DuraSonde Transmitter

The FD-20 is the most popular transmitter in our 512 Hz line for locating in cast iron and nonmetallic lines. And now with its new more durable design the FD-20 is ready to transmit even in the toughest terrain.

Replaces our FV-20 transmitter

  • Steel head for durability

  • Encased in a strong polycarbonate tube.

  • Watertight

  • Brass battery cap and 1 AAA alkaline battery included

  • Will work with any receiver that uses the 512 Hz frequency. For best results use one of our LineFinders

  • Our Spring Carriers are recommended to help protect your transmitter
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