1. Safety Precautions
WARNING:
- Do not disassemble, short-circuit, charge, or heat the battery. Battery content may leak and come into contact with the eye, or cause battery heating or explosion.
- If a battery is swallowed, immediately consult a doctor.
Environmental Disposal:
This product should not be treated as household waste. Please reuse and recycle to reduce environmental impact. Contact your local dealer or distributors for proper disposal information.
2. Product Overview and Components
The SHAHE IP54 Digital Vernier Caliper is designed for precise measurements in various applications. Below is a diagram illustrating its main components.

- Outside measuring faces
- Step measuring faces
- Inside measuring faces
- in/mm switch
- Clamp screw
- LCD display
- Connector cap (for external output type only)
- Main scale
- Depth bar
- Thumb roller
- Battery compartment lid
- Zero key
- Power ON/OFF switch
- Slider

3. Setup
3.1 Battery Installation
The caliper uses one 3V CR2032 environmental lithium battery (not included). To install or replace the battery:
- Locate the battery compartment lid (11) on the caliper.
- Use the provided mini screw or a suitable tool to gently rotate the battery cover counter-clockwise to open it.
- Insert the 3V CR2032 battery with the positive (+) side facing up.
- Close the battery cover by rotating it clockwise until it is securely locked.

4. Operating Instructions
4.1 Basic Operation
- Power ON/OFF (13): Press the "ON/OFF" button to turn the caliper on or off. The caliper also features automatic power-off after 5 minutes of inactivity.
- Unit Conversion (4): Press the "in/mm" button to switch between millimeter (mm) and inch (in) measurement systems. When in inch system, the LCD will display "in".
- Zero Setting (12): The "ZERO" key allows you to set the display to zero at any position within the measuring range. This is useful for relative measurements.
4.2 Preparing for Measurement
- Before use, loosen the fastening screw (5) on the caliper frame.
- Gently pull the caliper frame open.
- Use a clean, soft cloth to wipe the measuring surfaces and the guiding surface clean.
- Check Zero Position: Gently push the caliper frame until the two measuring jaw surfaces are completely closed. The LCD readout should display "zero". If it does not, press the "ZERO" key to set it to zero.
4.3 Measurement Methods
The caliper supports four-way measurement: outside diameter, inside diameter, depth, and step measurement.


- Outside Diameter Measurement: Fix the outside measuring faces (1) close to the workpiece to be measured.
- Inside Diameter Measurement: Place the inside measuring jaws (3) into the object and expand them to measure the internal diameter. Ensure the jaws are in the diameter direction and not leaning.
- Depth Measurement: Place the depth measuring blade (9) vertically with the workpiece's bottom surface.
- Step Measurement: Use the step measuring faces (2) to measure the height difference between two surfaces.
Direct Measurement: Use the caliper to measure the workpiece directly. The LCD readout will display the measured value directly.
Relative Measurement: Set "zero" when measuring a standard workpiece or sample. Then, measure the new workpiece; the LCD will display the relative measuring value compared to the standard.
4.4 Data Output
The caliper features a data output interface (7). Data can be outputted to a printer or computer for processing and printing, but requires a separate SHAHE Data Output Device (sold separately).

Video 1: Demonstration of SHAHE Digital Caliper in use, showing various measurements and unit conversion.
5. Maintenance
- Avoid exposing the caliper to areas with high dust, direct sunlight, ultraviolet radiation, or high temperatures.
- Handle the caliper gently; do not drop or crash it.
- Clean the measuring surface with gasoline or alcohol, ensuring no liquid comes into contact with electronic components or the upper surface of the measuring blade.
- The recommended usage and test environmental relative humidity is ≤80%.
6. Troubleshooting
| Common Fault | Possible Reason | Troubleshooting |
|---|---|---|
| Readouts jump or no readouts | Poor battery contacts or dead battery | 1. Check the inner battery contact. 2. Replace battery. |
| Readouts display irregularly | Caliper under damp and moisture situation | Clean the measuring blade upper surface with gauze or open it and clean. |
7. Specifications
| Feature | Description |
|---|---|
| Brand Name | Shahe |
| Model Number | 5110-150 (also available in 5110-200, 5110-300) |
| DIY Supplies | Metalworking |
| Material | Hardened Stainless Steel |
| Measurement Range | 0-150 mm / 0-6 inch (depending on model) |
| Resolution | 0.01 mm / 0.0005 inch |
| Accuracy | ±0.02 mm (for 0-150 mm model) |
| Caliper Type | Digital Calipers |
| Protection | IP54 Waterproof |
| Capacitive Grid Transducer | Glass fixed grid |
| Measurement Functions | Four-way (Outside Diameter, Inside Diameter, Step, Depth) |
| Data Output | Yes (requires separate SHAHE Data Output Device) |
| Battery Type | 3V CR2032 Environmental Lithium Battery |
| Battery Life | >1 year (under normal use) |
| Automatic Power Off | After 5 minutes of inactivity |
| Response Speed | 3 meter/second |
| Working Environment | Temperature 0-40℃, Relative Humidity ≤80% |
8. User Tips
- Battery Life: The CR2032 battery can last for a year or more, even with frequent use, making it a reliable tool for extended periods.
- Durability: The hardened stainless steel construction is robust and resistant to scratches, maintaining accuracy over time.
- Quick Start: The caliper often powers on automatically when the slider is moved, allowing for immediate use without pressing the ON/OFF button.
9. Warranty and Support
This SHAHE Digital Vernier Caliper comes with a one-year warranty from the date of purchase.
For detailed information, additional instructions, or support, please refer to the official user manual PDF available at: SHAHE Digital Caliper User Manual (PDF).





