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