Miniature - 512 Hertz

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For locating in small lines and p-traps

The smallest snakable transmitter in our 512Hz line. This mini transmitter still has the power to get the job done. The FM-05 will help you locate in small cast iron and nonmetallic lines and with the swivel drophead as the battery cap it will allow you to pass through P-traps and tight elbows. Runs on Alkaline batteries only. Silver Oxide will not work.

  • Battery caddie and 2-357/A76 button cell Alkaline batteries included
  • Drophead is included with a size 12-24 female threaded end
  • Easily attaches to a 3/16” push rod
  • Replacement dropheads are available for purchase
  • Water tight


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With its new and more durable and compact design the FD-10 is perfect for locating in lines as small as 2 inches. The FD-10 transmits using the industry standard 512 Hz frequency for locating in cast iron and nonmetallic lines.

  • Stainless Steel head for durability
  • Encased in a strong polycarbonate tube
  • Watertight
  • Brass battery cap and 2 N cell batteries included
  • Dropcap available for use with 1/4″ pushrods (sold separately)
  • Our Spring Carriers are recommended to help protect your transmitter