🔥 Product Overview
One ruler, multiple uses, consistent precision.
This digital angle gauge combines four key functions: angle measurement, internal and external angle measurement, straightedge, and drafting. Featuring a 1.2mm thick stainless steel body and a high-sensitivity digital display module, it achieves 0.05° high precision and full 0-360° angle coverage. Whether for carpentry, construction, machining or home renovation, it handles every task with ease.
✅ 0.05° High Accuracy | ✅ 0–360° Full Angle Range | ✅ Internal and External Angle Measurement | ✅ Multi-functional Ruler | ✅ Stainless Steel, Waterproof and Rust-proof
🎯 Key Features
1️⃣ 0.05° Ultra-High Accuracy | 0.05° High Accuracy
High-precision sensor with instant data feedback, ensuring a responsive and lag-free experience
0.05° resolution to meet precision machining and measurement requirements
Supports ZERO reset, HOLD lock and REV reverse measurement functions
2️⃣ Full 0–360° Measurement | Full 0–360° Measurement
Effortlessly measure internal (recessed) and external (projecting) angles
Lock at any angle for easy reading
360° measurement with no blind spots, suitable for all kinds of complex workpieces
3️⃣ Reinforced stainless steel body | 1.2mm Stainless Steel Body
1.2mm hardened and reinforced construction, made from solid materials, resistant to deformation
The measuring surface lies flush and parallel; the parallel base does not protrude, ensuring more accurate measurements
Stainless steel construction, waterproof, rust-proof and corrosion-resistant (⚠️ Do not immerse in water)
4️⃣ Clear Digital Display + Large Screen with Wide Characters | Large LCD Display
Wider screen with larger, clearer characters for instant readability
Manual power-on / automatic power-off for energy efficiency
Supports dual metric and imperial display (cm / in)
5️⃣ 3V High-Capacity Lithium Battery | Long‑Lasting 3V Battery
Upgraded 3V high-capacity lithium battery; one battery lasts for over six months
Manual power on, automatic power off, energy-saving design
Easy battery replacement in a single step
6️⃣ Multi-Functional Ruler | Multi‑Function Design
✅ Protractor (0‑360°)
✅ Measurement of internal and external angles
✅ Ruler (marking lines, measuring dimensions)
✅ Drafting aid
📐 Specifications
Length Width Extended Length Thickness Weight
200mm 35mm 400mm 1.2mm 210g
300mm 35mm 600mm 1.2mm 290g
500mm 35mm 1000mm 1.2mm 438g
Resolution: 0.05°
Measuring Range: 0–360°
Material: Thickened stainless steel
Battery: 3V lithium battery
Display: LCD digital display
🛠️ How to Use
Power on: Press ON/OFF
Angle measurement: Extend the ruler, place it against the surface to be measured, and read the value
Lock reading: Press HOLD/REV
Reset: Press ZERO
Auto power off: Turns off automatically after a period of inactivity
📘 Supports multiple functions including external angles (convex angles), internal angles (concave angles), marking lines, and straight-edge measurement.
🌍 Applications | Applications
🪑 Carpentry / Furniture Making
🏗️ Construction / Interior Decoration
🔧 Machining / Mould Making
🖼️ Picture frame / art frame angle cutting
📐 Education / Drafting / DIY crafts
📦 Package Contents
Digital Protractor × 1
3V Lithium Battery (pre-installed) × 1
User Manual × 1
❓ Frequently Asked Questions | FAQ
Q: Can it measure both external and internal angles?
A: Yes. It supports comprehensive measurement of internal and external angles from 0–360°.
Q: Is it waterproof?
A: The stainless steel construction offers rust and corrosion resistance, but it must not be submerged in water.
Q: How long does the battery last?
A: The 3V lithium battery lasts up to six months with normal use.
Q: What is the accuracy?
A: With a resolution of 0.05° and a high-precision sensor, the data is stable and reliable.
