BI20 Wall Scanner

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BI20 Wall Scanner

Indispensable locating device for drilling and orientation assistance


The BI20 wall scanner is indispensable both for professionals and ambitious do-it-yourselfers: the measuring device does not only reliably locate ferrous and non-ferrous metals and live cables, but also wooden substructures located under plaster or concrete. These hidden elements, which are potential interference factors for all work on walls and floors, are detected by the device to a depth of 50 mm.

Furthermore, the BI20 has an audiovisual warning function, which is used to signal the detection of live AC cables. The device, which is conceivably easy to handle, is equipped with an automatic switch-off function allowing to safe battery power, and moreover impresses with an excellent value-for-money ratio.

A few practical benefits

  • Development, design, production: 100 % Trotec
  • Simple detection of live (AC) cables, wood or metal in walls and floors
  • Detection to 50 mm deep
  • Audiovisual alarm upon detection of alternating current
  • Simple handling via one button
  • Battery status indication
  • Automatic switch-off
  • Practice-optimized German industrial design - protected design patent
Technical data
General information
  Article number 3.510.205.141
Material detection
  Maximum detection depth ≤ 25.4 mm wooden beam (30 x 30 mm)
≤ 38 mm metal tube (⌀ 20 mm)
≤ 50 mm electric lines (90 - 250 V, 50/ 60 Hz)
  Maximum detection depth for metal and live cables Max. 50 mm
  Maximum detection depth for wood Max. 25.4 mm
Device control
  Membrane keyboard
Housing design
Power supply
  Internal (battery) 1 x 9 V block battery
Surrounding conditions
  Operation - min. temperature [°C] -7
  Operation - max. temperature [°C] 40
  Storage - min. temperature [°C] -20
  Storage - max. temperature [°C] 50
  Length (packaging excluded) [mm] 168
  Width (packaging excluded) [mm] 35
  Height (packaging excluded) [mm] 75
  (packaging excluded) [kg] 0.21
Standard scope of delivery
Standard scope of delivery
  Measuring device
  Operating manual
Ascertainable measured values and functions
Functions and features
  Measuring modes: Metal, wood, power cables (AC)
  Automatic switch-off
  Visual signal transmitter
  Acoustic signal transmitter
  Battery status indication

 standard equipment

 optionally available

 not available

Alternative products

BI20 with alternative products:

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Wallscanner BI15 show in Trotec online shop

Wallscanner BI15

Thanks to the Wallscanner BP15 from the MultiMeasure Basic-Series you can locate ferrous and non-ferrous metals, wooden substructures and live cables, which are under plaster, cement and concrete.

You save: 40 %

45.91 £ 27.54 £ incl. VAT
Show net price (VAT not included)


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