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This section provides an overview for wall scanners as well as their applications and principles. Also, please take a look at the list of 9 wall scanner manufacturers and their company rankings. Here are the top-ranked wall scanner companies as of March, 2026: 1.RS Components Ltd., 2.Hilti, 3.Dezlon Industries Private Limited.
Table of Contents
Categories Related to Wall Scanners
A wall scanner is a measuring instrument that detects buried objects inside a wall.
The purpose of a wall scanner measurement is to determine the proper location for drilling holes in a wall or attaching an object to a wall. It is also referred to as a rebar scanner, a concrete detector, or a concrete sensor.
Objects buried inside walls can be rebar, steel, steel pipes, plastic pipes, wood, electric cables, and cavities. The appropriate wall scanner must be used for the purpose of detection.
Wall scanner applications are used for detecting objects inside walls in the construction and civil engineering field. Wall scanners are used to search the inside of walls, floors, and ceilings for water pipes, drainage pipes, conduit pipes, gas pipes, and so on.
Reinforcing steel, steel frames, piping, underlayment, reinforcement, spacing, cables, etc., are detected and unaffected areas are selected. Wall scanners are also used to survey the interior condition of walls and floors where railings, hardware, reinforcements, controls, operation panels, clocks, information equipment, shelving, etc. are to be installed.
When repairing plumbing and wiring, the role of the wall scanner is to identify the locations where they pass through to achieve efficient work. Wall scanner surveys can also be applied to investigate the condition of buried objects and voids on roads.
Wall scanners are mainly used with the electromagnetic radar method and the electromagnetic induction method.
One of the characteristics of electromagnetic radar is that electromagnetic waves in the microwave band travel straight through a medium at a constant speed. They are reflected where different media come into contact with each other. Using this property, it is possible to detect the distance and position to that point. Measurement using electromagnetic radar is a nondestructive inspection. It is widely used because it does not use radiation.
In wall scanners using the electromagnetic radar method, electromagnetic waves are first emitted from an antenna onto a wall or floor. The returned electromagnetic waves are then received by the receiving antenna, and the distance is calculated from the time between the emission and the return. Location information can be obtained by moving the device with the built-in distance meter.
The relative permittivity, which is the ratio of the permittivity of a material to that of a vacuum, affects the speed of electromagnetic waves, and is typically 6 to 8 for common concrete. The relative permittivity also changes with moisture content, and concrete that has just been placed will have a higher permittivity. With electromagnetic radar, a higher frequency will produce a higher resolution and more accurate inspection, but a shallower measurable depth.
Normally, it is possible to measure up to 200 to 300 mm. Among buried objects, metals and non-metals can be distinguished by the waveform of the reflected electromagnetic waves. Since the relative permittivity of metal is higher than that of concrete, the upper part of the waveform becomes a white peak and the lower part a black peak.
When an alternating current is applied to the test coil, a magnetic field is created and eddy currents are generated on the surface of the conductive material. The eddy currents induce the magnetic field in the opposite direction, causing a change in voltage, and the wall scanner using the electromagnetic induction method takes advantage of this change.
Cavities and PVC pipes cannot be measured by the electromagnetic induction method. The electromagnetic induction method is used to detect magnetic metals such as rebar and is used to measure the position and depth of rebar.
Some products can estimate the diameter of rebar. Depths of up to 100 mm can be measured.
Wall scanners should be selected based on the intended use, the type of structure, the type of object to be detected, and the depth to be detected. Types of structures include concrete, wood, block, brick, masonry, and wet concrete. The type of structures that can be detected is determined by the model of wall scanner.
Also, the types of objects that can be detected include metal pipes, non-metallic pipes, wood, and cavities. The detection depth sets the depth of detection from the surface of the wall or floor. It is important to select a model that can detect each of these.
Buried objects in walls are well detected if they are buried at right angles to the direction in which the wall scanner is moved. Therefore, if the object is a rod or line and is assumed to be buried vertically, scan the wall scanner horizontally.
If the buried object is expected to be horizontal, the wall scanner is moved vertically to detect it. If the object is expected to be a point shape, such as a screw, it is scanned both horizontally and vertically to locate the buried object.
*Including some distributors, etc.
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Dezlon Industries Private Limited, founded in India in 2016, is a manufacturer of brass architectural hardware, cable suspension systems, and cable hanging systems. The company's product portfolio includes brass lighting Parts, brass cable glands and accessories, brass and gunmetal earthing accessories, and customized metal fittings and parts. It also offers services such as Installation and Setup Guidance, Technical Consultation and Troubleshooting, Custom Product Training Programs, and Maintenance and Care Support.
Hilti is a manufacturer of power tools and related accessories used by construction industry professionals that was founded in 1941 in Schaan, Liechtenstein. The company produces standard and customized professional-grade power tools, fasteners, and software. These products include drills for various hard materials, chemical anchors, and layout engineering software. The company also offers product testing, technical support, and asset management services for customers needing additional support. Its products primarily serve clients in the civil engineering, energy distribution, and interior finishing sectors.
ADA Instruments, established in 2008, is a manufacturer that provides a range of laser and measuring instruments for construction and finishing works, based in Lithuania. The company's product line includes line lasers, rotary lasers, levels, detectors, and accessories, providing professional equipment for construction, surveying and diagnostics. Its products are designed to be functional and contemporary, with bright beams for indoor and outdoor operation. It offers products such as the ADA CUBE 3-360 line laser and the ADA ROTARY 500 HV-G Servo, which is ideal for horizontal and vertical marking.
Total Tools is a supplier and retailer of professional tools established in 1989 by Paul Dumbrell and headquartered in Port Melbourne, Victoria, Australia. The company's product portfolio is composed of outdoor power equipment, lubricants & chemicals, plumbing tools, pressure washers, and cleaning & hygiene supplies.These products are used for gardening fence post installation, ice fishing, and construction projects. The company offers products from various global manufacturers including DeWalt, Abbott & Ashby, Bordo Industrial Tools, McMillan Air Compressors, and Vacmaster.
Ranking as of March 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | RS Components Ltd. |
15.5%
|
| 2 | Hilti |
13.1%
|
| 3 | Dezlon Industries Private Limited |
13.1%
|
| 4 | ADA Instruments |
13.1%
|
| 5 | Aspro Tools LLC |
11.9%
|
| 6 | Robert Bosch Tool Corporation |
8.3%
|
| 7 | Property Perspective Ltd. |
7.1%
|
| 8 | CONDTROL FRANCE |
7.1%
|
| 9 | TOTAL TOOLS |
6.0%
|
| 10 | PowertoolWorld.co. |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the wall scanner page as of March 2026. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United Kingdom
|
2 | 25.0% |
|
United States of America
|
1 | 12.5% |
|
India
|
1 | 12.5% |
| Liechtenstein | 1 | 12.5% |
|
Australia
|
1 | 12.5% |
| Malta | 1 | 12.5% |
|
France
|
1 | 12.5% |
50 products found
50 products
SSR
490+ people viewing
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■Easy-to-use wall scanner and stud finder that prevents you from hitting buried objects when drilling or cutting near buried objects. ・Maximum exp...
KEYTEC Co., Ltd.
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■Confirmation of reinforcement status and measurement of cover thickness using electromagnetic induction method This is an electromagnetic inductio...
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■Application fields of RC radar weighing approximately 1Kg ・Concrete anchor field ・Coring field ・Air conditioning equipment field ・Electrical e...
SSR
680+ people viewing
This product can detect metal buried in concrete up to a depth of 200mm, and the newly installed spot view function allows detection in narrow spac...
SANKO ELECTRONIC LABORATORY CO.,LTD
460+ people viewing
■ Features ・ Check concrete structures, densely co -coining, CD tube, and PC steel material. ・ Performance and functions are always up to date wi...
2 models listed
SSR
640+ people viewing
Ideal for determining the appropriate hole location in the wall. Accurately detects all obstacles such as reinforcing bars, PVC vibrators, electric...
SSR
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High-precision detection of buried objects deep within walls using a highly sensitive and large radar antenna ■Features ・Detection of linear buri...
SSR
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SANKO ELECTRONIC LABORATORY CO.,LTD
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Reinforced Extra 331^2 is a compact reinforced aircraft that can be specified and accurate and accurate in concrete steel bars in concrete. Using h...
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FTS Co., Ltd.
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GP8000 is a new electromagnetic radar that uses SFCW (Stepped-Frequency Continuous Wave) technology developed by Swiss company PROCEQ. Adopting a w...
e431 Co., Ltd.
760+ people viewing
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This is a sensor that detects the position of parts (wood, metal, live wires) behind the wall. By pressing the device against the wall and moving i...
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The GP8800, developed by the Swiss company Proceq, is a new rebar probe that uses SFCW (Stepped-Frequency Continuous Wave) technology. Adopting a w...
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Marui Co., Ltd.
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STS Corporation
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■Summary ・Metal depth display Magnetized and non-magnetic metal types available ・Wall-mounted installation ・Installing handrails ・Curtain rail ...
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Marui Co., Ltd.
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Marui Co., Ltd.
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