VERIFIED · 2026 canonical · www.jaspecs.com

Milwaukee SUB-SCANNER M12 Detection Tool

Model number
2291-20

A cordless subsurface detection tool for finding studs and metal behind walls, with deeper metal scanning than many basic stud finders.

identifiers stable · addressable
Model no.
2291-20
Brand
Milwaukee
Category
Other
Canonical URL
/milwaukee/other/2291-20-sub-scanner-m12-detection-tool/
21 spec rows · each row is anchorable

§ Specifications

#specifications
Product Type
Detection Tool
Voltage (V)
12
Cordless / Corded
Cordless
Power Source
Battery
Tool Only
Yes
Batteries Included
0
Charger Included
No
Piece Count
1
Battery Platform
M12
Warranty
2-year limited (tool)
Switch Type
On/Off Button
Backlight
Yes
Display Resolution In
0.5
Scanning Depth Stud In
1.5
Scanning Depth Metal In
6
Accuracy Stud Center In
0.25
Accuracy Metal Center In
0.5
Shows Metal Depth
Yes
Ferrous Nonferrous Detection
Yes
Displays Stud Position
Yes
Auto Calibration
Yes

§ What's Included

01 (1) SUB-SCANNER M12 Detection Tool (2291-20)

§ Warranty

2-year limited (tool)

§ FAQ

Does the 2291-20 include a battery or charger?

No. The 2291-20 is sold as a bare M12 tool with no battery or charger included.

What can this tool detect?

Milwaukee lists stud and metal detection, including differentiation between ferrous and non-ferrous metal.

How deep can it scan for metal?

Milwaukee lists up to 6 inches in metal mode.