Duct Sonde 33 kHz, 24 mm Diameter and 300 mm Length, 3/4 BSW Thread - Leica Duct Sonde 33
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A clay or plastic sewer carries no locating signal, so the source has to travel inside the line. The Duct Sonde 33 does that with a 300 mm body of 24 mm diameter, pushed in on a drain rod or an inspection camera. Transmitting at 33 kHz, it is detected at the surface down to 5 m and makes route and problem points visible.
Benefits
- 24 x 300 mm format: the slim length follows bends and sockets without jamming and stays manoeuvrable in smaller sewers.
- 3/4 BSW thread in both forms: male and female thread allow direct mounting on drain rods, boring tools and inspection cameras without hunting for an adapter.
- 33 kHz transmit frequency: the standard sonde frequency of the DD locators, usable straight away with no changeover.
- 5 m depth range: covers underground drains, connection sewers and land drainage at usual laying depths.
- One AAA alkaline cell: LR03 is available everywhere and a field replacement takes seconds.
Technical data
| Feature | Value |
|---|---|
| Product type | Duct sonde for non-conductive lines |
| Diameter | 24 mm (0.95 in) |
| Length | 300 mm (12 in) |
| Transmit frequency | 33 kHz |
| Depth range | 5 m (16 ft) |
| Thread | 3/4 BSW male and female |
| Power supply | 1 x AAA alkaline cell LR03 |
| Mounts to | drain rods, boring tools, inspection cameras |
| Shipping weight | 0.480 kg |
| Packaging dimensions | 33 x 5 x 5 cm |
| EAN | 7640110698969 |
| Customs code | 9015802000 |
| Country of origin | Great Britain |
Applications
Tracing clay and plastic drains, sewers and land drainage, pinpointing camera positions during inspection, finding blockages and pipe failures before excavation, locating duct routes, surveying non-metallic lines for records.
Compatibility and scope of delivery
The manufacturer specifies the sonde for use with DD locators in sonde mode. The 3/4 BSW thread is provided in male and female form, so common drain rods and tools fit directly. The sonde is supplied with the battery fitted, no further accessories are listed.
Standards and origin
Made in Great Britain, customs code 9015802000, EAN 7640110698969. Shipping weight 0.480 kg, packaging size 33 x 5 x 5 cm. The product contains a battery, so the relevant transport rules apply to shipping.
| Weight | 0.480000 |
|---|---|
| Manufacturer | Leica Geosystems |
| Manufacturer Nr. | 856131 |
| EAN | 7640110698969 |
| HS-Code | 9015802000 |
| GPSR manufacturer information | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Condition of article | New |
| Article authenticity | Original product |
| Country of Manufacture | United Kingdom |







