Digital Caliper User Manual

About this manual

The digital caliper offers four measurement functions—external, internal, depth, and step measurement—and features IP54 splash‑ and dust‑proof protection. It includes automatic power‑off after 5 minutes of inactivity, unit conversion between mm and in, and upper/lower limit settings with visual indicators.

The manual explains how to replace the 3 V CR2032 lithium battery, pair the device via Bluetooth for data transmission to a computer or mobile phone, and perform maintenance such as cleaning with a soft dry cloth. Safety precautions, error troubleshooting, and specifications such as measurement range, resolution, and accuracy are also covered. This manual is written in Chinese.

What's inside

• Measurement methods
• Technical parameters
• Battery replacement
• Unit conversion
• Upper and lower limit setting
• Data transmission
• Safety precautions
• Troubleshooting
• Maintenance

Specifications

Frequently asked questions

How do I replace the battery in the digital caliper?

Open the battery cover, insert a new 3 V CR2032 lithium battery, and close the cover.

What should I do if the LCD display is dim or unresponsive?

Check the battery; if the voltage is low, replace it with a new CR2032 battery.

How do I set the upper and lower measurement limits?

Press and hold the mm/in/SET button to enter the limit setting mode; the LCD will show the limit indicator and you can adjust the value with short presses of the same button.