Curves & irregular surfaces
Follows rounded edges and uneven paths while the wheel stays in contact.
Digital DisplayRolling SensorUSB RechargeableThe pocket-sized digital measuring tool built for curves, corners, and everyday projects.
Measure curves, corners, and everyday objects in seconds.
Why Lumi Tape?
Follows rounded edges and uneven paths while the wheel stays in contact.
See the measurement on the LCD display in real time as you roll.
About 35 g with USB-C charging — fits a pocket, bag, or toolbox.
Standard, inside, obstruction, and circumference modes with saved readings.
Lumi Tape vs traditional tape
Product highlights
How it works
Hold the power switch for about one second, then place the wheel on the surface.
Keep the wheel in contact and roll along the object at a steady pace.
The digital display updates in real time as you roll.
Lines, edges, and materials.
Furniture, shelves, and corners.
Curves and irregular surfaces.
Patterns, seams, and layouts.
Boxes and cylindrical objects.
If it has an edge, curve, or surface — Lumi Tape can measure it.
From the product manual and confirmed supplier specifications.
Up to 29.5 ft in one roll; up to 324 ft cumulatively.
Measures round objects and calculates diameter automatically.
Standard, inside, left/right obstruction, and circumference.
Depending on rolling technique and surface.
Stores up to 10 groups of previous measurements.
About 2.09 × 0.6 in and 35 g — pocket-friendly.
LCD backlight duration: 30–120 seconds.
Powers down after ~180 seconds without operation.
In the box: 1 × Lumi Tape electronic rolling ruler, 1 × USB-C charging cable.
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Simple measuring. Straightforward shopping. Support when you need it.
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The Lumi Tape electronic rolling ruler — one price, one simple tool.