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Duct Sonde PL18-05 (18 mm, 512 Hz)

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SKU: PL18-05 Categories: , ,
  • Description
  • Additional Information

PL18-05 is a low frequency (512Hz) pipe transmitter sonde, which enables tracing of underground cast iron ducts and their blockages. Also stainless steel ducts commonly used in industry can be followed and checked with PL18-05.

PL18-05 powers on when the battery compartment is turned to the transmitter section. Red power-on LED at the tip of the sonde indicates operation. If LED goes off, battery is weak. Sonde is attached to the push rod (snake) with the M12 threaded sleeve or with tape. After that the sonde is pushed into the target duct using the push rod.

All PL18-series sondes can be mounted to a variety of push rods. Standard mounting is for rods with M12 male thread. With the PL18-FM flexible mounting accessory also M6 rods can be used and the PL-MSA accessory enables M5 and M10 rods.

To avoid loosing signal e.g. at corners the sonde is traced with a cable tracer receiver along as it moves ahead. If sonde hits an obstacle or blockage, it’s possible to define the location and depth very accurately, which reduces unnecessary digging.

PL18-05 diameter is 18.2mm and length with stardard battery compartment is 110mm. Transmitted signal is continuous 512Hz.

This Vesala product is made in Finland.


Basic Set-up
PL18-05 Transmitter
3.6V Lithium battery
Plastic box
User’s manual

Comparison table of Vesala duct sondes. Indicated range is typical tracing distance with Vesala CL43 receiver. Maximum range is longer.
Model Diameter Frequency Signal Range In Free Air Range In Cast Iron Duct IP / IK Code Battery Type Battery Life Optional Battery Compartment
MPL6-10 6.4 mm 10 kHz Interrupted 1.2 m 0 m IP67 / IK03 CR425 10 h
MPL6-33 6.4 mm 33 kHz Continuous 2.3 m 0 m IP67 / IK03 CR425 10 h
MPL7-10 7.5 mm 10 kHz Interrupted 3.3 m 0 m IP67 / IK07 CR535 9 h MPL7-M5
MPL7-33 7.5 mm 33 kHz Continuous 5.1 m 0 m IP67 / IK07 CR535 9 h MPL7-M5
MPL9-10 9.0 mm 10 kHz Interrupted 3.5 m 0 m IP67 / IK07 CR535 10 h MPL9-M5
MPL9-33 9.0 mm 33 kHz Continuous 5.7 m 0 m IP67 / IK07 CR535 10 h MPL9-M5
PL18-05 18 mm 512 Hz Continuous 5.3 m 3.5 m IP68 / IK08 LS14250 8 h PL18-FM
PL18-10 18 mm 10 kHz Interrupted 5.0 m 0 m IP68 / IK08 LS14250 40 h PL18-FM
PL18-33 18 mm 33 kHz Continuous 10 m 0 m IP68 / IK08 LS14250 20 h PL18-FM
PL42-05 42 mm 512 Hz Continuous 13 m 8.4 m IP68 / IK08 8 x LR6 5 h
Weight 0.2 kg