Ingco Digital Vernier Caliper 150mm HDCD28150

Our review

This is a 150mm (6 inch) digital vernier caliper from Ingco, model HDCD28150. It measures across a 0-150mm range with a resolution of 0.01mm, or 0.0005 inch, and you can switch between metric and inch readings at any position rather than losing your zero. The housing carries an IP54 rating, which covers dust and splashes, and it runs on a 3V battery. It arrives packed in a plastic box.
It suits workshop users, machinists, hobbyists, engineering students and anyone doing repetitive measuring who wants a clear digital readout instead of squinting at a vernier scale. The 150mm size covers most everyday work: shafts, plate thickness, bore depths and small machined parts.
Before buying, think about what you actually measure. If you regularly go past 150mm, you need a longer caliper. If you work near coolant or fine dust, the IP54 rating matters, but check whether you need full water resistance instead. Also confirm the battery type is easy for you to source locally.
Compared with basic dial or manual vernier calipers, a digital model like this is faster to read and less prone to parallax error, though it depends on a battery. Against premium brands, Ingco generally sits in the value tier, so judge it on the resolution, range and IP54 housing rather than expecting lab-grade certification. Check the jaw condition and zero it before each session.