DEWALT 12-Volt Hand Held Wall Scanner DCT419

By Robert Robillard on Tool News

DEWALT 12-Volt Hand Held Wall Scanner DCT419DEWALT 12-Volt Hand Held Wall Scanner DCT419

The DEWALT 12 volt hand held wall scanner DCT419 was designed to assist contractors with assessing hidden conditions, and embedded material detection.

The DCT419 can detect the following items behind multiple wall surfaces:

  • wood
  • ferrous and non-ferrous metal
  • plastic
  • unshielded live electric wiring

How Deep Can The DCT419 Reach?

The DCT419 Wall Scanner has a sensing depth of up to 3 inches and will sense items behind drywall, plywood, concrete and ceramic tile.

Upgraded Design:

The DCT419 is an improved version from earlier models and has used an improved detection algorithm to sense embedded materials.

How It Works?

The Hand Held Wall Scanner is used to scan up to a 9.8-foot wall section in a straight line, either vertically or horizontally. Multiple sensors inside the tool register material type that is most likely behind the wall surface — wood, ferrous and non-ferrous metal, plastic, and unshielded live electric wiring—and the detection results are displayed on a 3.5-inch LCD color screen.

The Hand Held Wall Scanner features a pre-scan mapping mode that eliminates the need to calibrate or choose between settings. The first pass over the wall surface maps all of the detected embedded materials. When the user reverses the direction, the embedded materials detected are displayed. The Hand Held Wall Scanner also includes a tracking bar that counts the number of embedded materials detected in a scan.

DEWALT 12-Volt Hand Held Wall Scanner DCT419

How Much and Where To Buy?

The DCT419 Held Wall Scanner retails for $399 as a kitted unit (DCT419S1), complete with one DCT419 Hand Held Wall Scanner, one 12-volt battery and charger.


Voltage 12V MAX*
Display Type 3.5″ Color LCD
Scanning Range Up to 9.8 feet
Wall Surfaces Scanned Through Drywall, plywood, concrete and ceramic tile
Embedded Materials Detected Wood, ferrous metal, non-ferrous metal, plastic and unshielded live electric
Wood Sensing Depth 1.5″ Maximum
Non-Ferrous Metal Sensing Depth 3″ Maximum
Ferrous Metal Sensing Depth 3″ Maximum
Plastic Sensing Depth 3″ Maximum
Live Electric (Unshielded) Sensing Depth 3″ Maximum
Minimum Assumed Spacing Between Embedded Materials 4″
Position Accuracy +/- 1/2″
Display Resolution 320 x 240
Languages English, Spanish, French
Calibration Automatic mapping for all embedded material types
Shipping Weight 7.1lbs


The DEWALT DCT419S1 12V MAX Hand Held Wall Scanner sells online for $299.00 here:  DEWALT-DCT419S1-Hand-Held-Scanner

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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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