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VESALA NANOSONDE MPL4-33 (4.6 mm, 33 kHz)

VESALA NANOSONDE MPL4-33 (4.6 mm, 33 kHz)


Regular price €595.00EX VAT (€731.85 INC VAT)
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NanoSonde MPL4-33 is Vesala’s new, world’s tiniest active sonde for small underground ducts. It is only 4.6 mm in diameter so it is optimal for calibrating 6 mm (inner diameter) fiber optic ducts and to locate their blockages, dents and other problems. MPL4-33 is flexible in the middle so it can navigate tight duct curves down to 170 mm radius.

MPL4-33 is intended to be used with the Vesala CL43 Compact Locator and other cable tracers and pipe locators working on the 33 kHz tracing frequency. 

Battery included as standard. Replacement batteries available here

Full Description

How to calibrate micro ducts with MPL4-33

Before jetting, a suitable size shock absorber is attached to the sonde. It will protect the sonde if it hits an obstacle. After inserting a battery sonde is jetted into the duct. If sonde gets through the duct, duct is successfully calibrated. If sonde stops in the duct, it is located above ground using a cable tracer receiver. Knowing the exact spot of a blockage considerably saves time and reduces unnecessary digging costs.

MPL4-33 technical features

MPL4-33 turns on and starts sending tracing signal when a battery is inserted and the battery cap is attached. Typical tracing distance using CL43 receiver is 2.3 m. Replaceable lithium battery enables approx. 9 hours total usage time depending on ambient temperature. MPL4-33 diameter is 4.6 mm and length with battery cap 94 mm. Mounting thread for shock absorbers is M3.5 female. A shock absorber with 4.8 mm calibrator suitable for 6 mm ducts is included. 6.4 mm head for 8 mm ducts is also availabe.

This Vesala product is made in Finland. MPL4-33 construction has been granted utility model.

Key Features

  • MPL4-33 Transmitter sonde with M3.5 mounting thread
  • Spare battery cap
  • 3.0V lithium battery BR425, 2 pcs
  • Shock absorber and 4.8mm calibrator IV343-48
  • Plastic storage box SB4
  • Quick guide

Shipping & Returns

Ireland & UK

• Next Day Delivery to customers in Ireland on all ex-stock products where possible, and on all orders before 2pm.

• All our products are delivered by Fastway, DPD or Pallet Network, allowing us to use reliable, flexible options to ensure you get your goods in an efficient and timely manner.

• Please note certain items we can’t currently ship to the UK

• Allow 3 – 5 Day Delivery for all goods shipping to the U.K.

Please note that we aim to keep every product that we advertise in stock and to guarantee next day delivery on all orders.  However, on occasion, due to the high volume of sales, some products may be temporarily out of stock.  In such cases we will deliver as soon as the product is available.  Please email or call us if in any doubt.



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