Fowler 54-440-775-1 Digi-pro Electronic Protractor

Product Description

The FOWLER 54-440-775-1 Digi-Pro Electronic Protractor is a 12-inch digital angle-measuring tool designed for fast, accurate angular readings across a full 360-degree range. Embedded 25-pound pull magnets allow secure, hands-free positioning on ferrous surfaces, making it well-suited for layout and alignment tasks where conventional protractors are difficult to hold in place. With a resolution of 0.05 degrees and repeatability of 0.05 degrees, it delivers the precision that trade and inspection work demands. The invertible display adds flexibility in tight or awkward measurement areas where the tool must be read from an unusual angle.

This protractor is used in applications requiring precise angle measurement, including fabrication, metalwork, HVAC duct layout, electrical conduit bending verification, and general mechanical inspection. The magnetic base makes it especially useful on structural steel, ductwork, conduit, and machinery frames where hands-free tool placement speeds up the workflow. It is appropriate for both shop and field use by journeymen and apprentices alike.

Key Features

• Full 360-degree measuring range for versatile angular measurement in any orientation
• Embedded 25-pound pull magnets for hands-free attachment to ferrous surfaces
• Resolution of 0.05 degrees and repeatability of 0.05 degrees for high-precision readings
• Accuracy of 0.2 degrees across the measurement range
• Invertible display with On/Off, Zero, Hold, and Reverse functions for easy reading in confined or inverted positions
• Powered by a standard 3-volt lithium battery

Compatibility

Designed as a general-purpose electronic protractor suitable for use on ferrous metal surfaces in fabrication, HVAC, electrical, and mechanical inspection applications.

Installation Notes

This tool requires no installation. Before use, ensure the reference surface is clean and flat to avoid false readings. Zero the display on a known reference angle before beginning a measurement sequence. Battery replacement requires a standard 3-volt lithium cell; consult the manufacturer documentation for the correct cell type and replacement procedure.