The FD-40 is the largest in our 512 Hz line of DuraSonde transmitters. Now with a new more durable design it is ready to locate in deep cast iron and nonmetallic lines.

Replaces our FV-40 transmitter

• Best used when mounted on a tractor camera
• Metal Endcap for durability
• Encased in a strong polycarbonate tube
• Watertight
• Brass battery cap and 4 C cell batteries included