High Precision 12in/300mm Electronic Digital Caliper - Accurate

In this review of the High Precision 12in/300mm Electronic Digital Caliper, the bottom line is simple: this is a capable, practical measuring tool for anyone who needs reliable, repeatable readings up to 300 mm. It stands out for a clear, large LCD and true metric/imperial switching, making it useful for workshop tasks, jewelry work, and hobby projects where accuracy matters. The unit's precision and long-lasting battery life are the single biggest reasons to consider it for routine dimensional checks.

Key Features

• Measurement range: The 0 - 12in / 0 - 300 mm range covers most small to medium workshop needs without requiring multiple instruments.
• High resolution: A resolution of 0.0005 in / 0.01 mm gives fine readout steps for careful fits and small adjustments.
• Conversion button: The quick-change inch/mm button makes switching between units immediate and reduces conversion errors.
• Four measuring modes: Two sets of jaws plus a probe let you measure external, internal, depth and step dimensions with one tool.
• Battery life and auto off: Supplied with two high-capacity CR2032 batteries and an auto-off feature to preserve charge for longer use.
• Protective packaging: The caliper ships in a sturdy plastic case and corrugated box to keep it protected in storage and transit.

Who It's For

This caliper is aimed at professionals and hobbyists who need a dependable, easy-to-read digital measuring tool. Jewelers, woodworkers, machinists doing light inspection work, and DIYers will appreciate the combination of metric and imperial readouts, the clear LCD, and the ability to measure depth, steps and internal/external diameters.

Those who require ultra-robust industrial-grade housings or laboratory-grade calibration certificates should look elsewhere; while accuracy and resolution are strong for general use, the build quality received mixed comments from some users and the unit is best suited for general shop and hobby measurement rather than heavy daily abuse.

Pros & Cons

Pros

• Accurate and high-resolution readings that suit fine measuring tasks.
• Easy unit conversion and a large LCD that simplify repeated measurements.
• Versatile measuring options with two jaws and a probe for depth/step/internal checks.
• Good value with included batteries and protective packaging.

Cons

• Build quality opinions are mixed; some users report lighter construction compared with higher-end tools.
• One customer noted a marking/scratch on the screen, so inspect on arrival before heavy use.

Specifications

Brand	Dasqua
Range	0 - 12 in / 0 - 300 mm
Resolution	0.0005 in / 0.01 mm
Accuracy	0.0015 in / 0.03 mm
Batteries	Two 3V CR2032 (230 mAh) included
Measuring modes	External, internal, depth, step
Package	Sturdy plastic case and corrugated box

Our Verdict

The High Precision 12in/300mm Electronic Digital Caliper is a practical, accurate tool for most workshop and hobby measurement tasks. It offers strong resolution, easy unit switching and useful measuring flexibility at a sensible price, making it a smart choice for users who need reliable dimensional checks without the premium cost of lab-grade instruments.

Frequently Asked Questions

Does this caliper measure both inches and millimeters?
Yes, it has a quick-change button to switch instantly between inch and millimeter readouts.

What measuring functions are supported?
The caliper measures external and internal diameters, depth and step using two sets of jaws and a probe.

Are batteries included and how long do they last?
Two CR2032 batteries are included and the unit features intelligent auto-on/off to extend battery life.