SONDES

A small transmitting coil which may be built into a product such as a sewer camera or packaged as a small self contained battery powered transmitter. A receiver tuned to the same frequency can locate the position and depth of the Sonde and hence whatever it is attached to or in. Frequently used for locating sewer cameras, and the non metallic pipes.

	D18-33-SR44 Sonde 0.75in (18mm) x 3.1in (80mm) long, 33 kHz, range 12ft (4m). 2 x button cell batteries.
	D38-33-AA Sonde 1.5in (38mm) x 4.1in (105mm) long, 33 kHz, range 15ft (5m). 1 x AA battery.
	D64-33-LR61 Sonde 2.5in (64mm) x 7.3in (186mm) long, 33 kHz, range 24ft (8m). 1 x LR61 battery.
	D23F-512-AA / D23F-640-AA Sonde 1in (23mm) x 18in (456mm) long, range 20ft (7m). “Flexible (3 section) Sonde with optional 512Hz or 640Hz for use in cast iron pipes”. 1 x AA battery.