Digital caliper OW 1351402, 150 mm measuring range, model OPD

Digital caliper OW model OPD with a 150 mm measuring range is a compact electronic vernier designed for direct digital readout of internal, external and depth measurements. The tool offers fast, repeatable linear measurements up to 150 mm and is suitable for workshop, hobby and quality control environments where straightforward, accurate dimension checks are required. Its handheld form factor allows quick positioning and measurement of small parts and features.

Advantages

This digital caliper provides an immediate numeric display that reduces reading errors compared with analog scales. It supports internal, external and depth measurement functions in a single instrument and is sized for easy handling and storage. The device is suitable for repeated checks, offering consistent results for routine inspection and assembly tasks.

Suitable for

• Workshop measurement and small-part inspection
• Hobby projects, model building and DIY tasks
• Quality control and production spot checks
• Measuring bore, outside dimensions, step and depth features up to 150 mm

Key specifications

• Measuring range: up to 150 mm
• Measurement types: external, internal and depth
• Display: digital readout for direct numerical results
• Form factor: handheld caliper with sliding scale
• Typical applications: precision linear measurement of small parts

How to use

Place the caliper jaws around the object for external measurements, insert the small jaws into a bore for internal measurements, or use the depth probe to measure slot or step depths. Slide the scale until the jaws or probe contact the measured surface, then read the value on the digital display. Ensure the measuring faces are clean and parallel to the feature being measured and re-zero the display if necessary before taking critical measurements.

Usage recommendations

Keep measuring faces clean and store the caliper in a protective case when not in use. Avoid exposing the instrument to prolonged moisture or heavy impacts. For repeatable results, allow the caliper to stabilise to ambient temperature and verify zero before series measurements.