FD-20 | 512 Hz DuraSonde Transmitter

$600.00

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 and stronger signal 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

Frequency: 512 Hz
Dimensions: 3/4” W x 4” L
Line size: 3 inches and up
Range: 14 feet in cast iron | 23 feet in nonmetallic
Range is determined under best conditions using a Prototek Receiver
Signal tone: Continuous
Battery: 1 AAA alkaline battery

Q: Do you have a product that will help protect my DuraSonde transmitter in the pipe?
A: Yes. You can check out one of our Spring Carriers.

Q: Will it go through cast iron?
A: Yes it will. 512 Hz is perfect for locating in cast iron. It gets 15 feet in cast iron and even better range in nonmetallic lines up to 24 feet deep.

Q: Why am I not getting the full range?
A: There can be many factors. First off, always make sure you have a new battery. Second, keep in mind the soil composition of the area where you are locating. Third thing is the wall thickness of the pipe you are locating in. These are just a couple of the factors that can affect the signal strength of the transmitter.

Q: I am using a receiver other than Prototek and I am not getting the range that you advertise on your website. What is the deal?
A: Our receivers are very sensitive, they tend to pick up the signals a little better than others. All our ranges posted on our website are determined with our receivers. We can't guarantee what you will get with other brands of receivers.

Q: Can I attach this directly to a sewer machine?
A: Yes you can, but we highly recommend that you buy a spring carrier to help protect and extend the life of your transmitter.

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Additional information

Weight 1 lbs
Dimensions 5 × 2 × 2 in