The FD-10 miniature transmitter goes almost anywhere, in cast iron or non-metallic lines. Pipe sizes as small as 1″, or P-traps down to 2″.
The FD-10 transmitter runs at a 512 Hz frequency, up to 10 feet in cast iron, 15 feet in nonmetallic lines.
For best performance use new batteries for each locate.
Note: This is the same product as the previously available FN-10.