The TOPTUL IACC1150 Digital Vernier Caliper is designed for accurate and convenient dimensional measurement in mechanical workshops, manufacturing facilities, engineering applications, and technical education.
It provides a measuring range of 0 to 150 mm, with a resolution of 0.01 mm, and features a large LCD display for fast and clear readings.
The digital caliper supports outside, inside, depth, and step measurements, making it suitable for checking shafts, pipes, holes, metal sheets, components, and machined parts.
Manufactured from hardened and tempered stainless steel, the tool is designed for durability and repeated professional use.
Users can switch between millimetres and inches with one button. The zero function also allows the displayed value to be reset at any position for differential and comparative measurements.
A locking screw helps secure the sliding jaw when recording or transferring a measurement. The tool is supplied in a protective plastic case with two LR44 batteries.
Key Features
- Measuring range from 0 to 150 mm.
- Resolution of 0.01 mm.
- Large and easy-to-read LCD display.
- 10 mm digital character height.
- Switchable millimetre and inch units.
- Zero reset at any measuring position.
- Suitable for outside measurements.
- Suitable for inside measurements.
- Supports depth and step measurements.
- Automatic power-on when the slider moves.
- Automatic shut-off after 5 minutes.
- Hardened and tempered stainless-steel construction.
- Sliding-jaw locking screw.
- Suitable for differential measurements.
- Protective plastic storage case.
- Two LR44 batteries included.
- Professional TOPTUL measuring tool.
Recommended Applications
- Measuring outside diameters.
- Measuring inside diameters and openings.
- Measuring metal sheet and component thickness.
- Measuring hole and slot depth.
- Measuring steps and shoulders.
- Checking shafts and mechanical components.
- Measuring bolts, nuts, and fittings.
- Machining and lathe work.
- Quality inspection and manufacturing.
- Automotive and mechanical workshops.
- Engineering and maintenance work.
- Technical education and laboratory use.
Supported Measurement Types
Outside Measurement
The large lower jaws measure the external width, thickness, or diameter of a component.
Inside Measurement
The smaller upper jaws measure internal diameters, slots, and openings.
Depth Measurement
The depth rod extends from the end of the caliper to measure holes, grooves, and recessed areas.
Step Measurement
The rear measuring surfaces can be used to measure the difference between two levels or shoulders.
Technical Specifications
- Brand: TOPTUL.
- Product Name: Digital Vernier Caliper.
- Product Number: IACC1150.
- Tool Type: Electronic Digital Caliper.
- Measuring Range: 0–150 mm.
- Approximate Inch Range: 0–6 inches.
- Resolution: 0.01 mm.
- Inch Resolution: 0.0005 inch.
- Accuracy up to 100 mm: ±0.02 mm.
- Accuracy above 100 mm: ±0.03 mm.
- Measurement Units: Millimetres and Inches.
- Display Type: Digital LCD.
- Digital Character Height: 10 mm.
- Material: Hardened and Tempered Stainless Steel.
- Jaw Dimension A: 40 mm.
- Jaw Dimension B: 14 mm.
- Overall Length: 235 mm.
- Zero Function: Available at Any Position.
- Automatic Power-On: Available.
- Automatic Shut-Off: After 5 Minutes.
- Sliding-Jaw Locking Screw: Included.
- Operating Temperature: 0 to 40°C.
- Storage Temperature: -20 to 70°C.
- Battery Type: LR44.
- Included Battery Quantity: 2.
- Storage Case: Plastic Case.
Package Contents
- 1 × TOPTUL Digital Vernier Caliper.
- 1 × Plastic Storage Case.
- 2 × LR44 Batteries.
What Is a Digital Caliper?
A digital caliper is an electronic measuring tool used to determine outside dimensions, inside dimensions, depths, and steps.
The measurement is shown directly on an LCD screen, making the result easier to read than a traditional manual vernier scale.
How to Use the Digital Caliper
- Clean the measuring jaws and the component.
- Switch on the caliper or move the slider to activate it.
- Close the jaws gently.
- Press the Zero button to confirm a zero reading.
- Select millimetres or inches.
- Choose the correct measuring surface.
- Place the caliper on the component without excessive force.
- Keep the tool aligned with the dimension being measured.
- Wait for the reading to stabilise.
- Use the locking screw when the position needs to be retained.
- Clean and store the caliper in its case after use.
Resolution vs. Accuracy
Resolution is the smallest value the display can show. This caliper has a resolution of 0.01 mm.
Accuracy describes the possible difference between the displayed result and the actual dimension:
- ±0.02 mm for measurements up to 100 mm.
- ±0.03 mm for measurements above 100 mm.
Therefore, 0.01 mm should be described as the resolution rather than the measurement accuracy.
How to Maintain the Digital Caliper
- Clean the jaws before and after measurement.
- Avoid applying excessive pressure.
- Reset the display to zero before measuring.
- Protect the tool from drops and impacts.
- Do not use it as a marking or prying tool.
- Keep it away from moisture and corrosive chemicals.
- Remove the battery before extended storage.
- Check accuracy periodically with a known reference.
- Store the tool inside the supplied case.
Frequently Asked Questions
What is a digital caliper used for?
It is used to measure outside dimensions, inside diameters, thicknesses, depths, steps, and mechanical component sizes.
Is it suitable for mechanical workshops?
Yes. It is suitable for automotive workshops, machining, maintenance, engineering, manufacturing, and quality inspection.
What is the measuring range?
The measuring range is 0 to 150 mm, or approximately 6 inches.
Is the accuracy 0.01 mm?
No. The 0.01 mm value is the display resolution. Accuracy is ±0.02 mm up to 100 mm and ±0.03 mm above 100 mm.
Can it measure in inches?
Yes. The user can switch between millimetres and inches using the unit button.
What is the Zero button used for?
It resets the displayed value to zero at any position, allowing differential and comparative measurements.
Can it measure hole depth?
Yes. The depth rod can be used to measure holes, grooves, and recessed sections.
Can it measure internal pipe diameters?
Yes. The smaller upper jaws are designed for inside measurements.
Does it shut off automatically?
Yes. The caliper automatically switches off after approximately 5 minutes of inactivity.
Which battery does it use?
It uses an LR44 battery, and two batteries are included.
Is a storage case included?
Yes. The caliper is supplied in a protective plastic case.
Does a digital caliper require calibration?
Periodic accuracy checks are recommended, especially when the tool is used for professional inspection or quality-control applications.
Why Choose the TOPTUL Digital Caliper?
- Practical 0–150 mm measuring range.
- Clear digital display.
- 0.01 mm resolution.
- Supports four measurement types.
- Hardened stainless-steel construction.
- Millimetre and inch display options.
- Zero reset at any position.
- Automatic power-on and shut-off.
- Storage case and batteries included.
- Suitable for workshops, engineering, and production.
- Genuine TOPTUL measuring tool.
Why Buy TOPTUL Tools from Eddaty?
Eddaty supplies genuine TOPTUL tools and professional measuring equipment for technicians, engineers, mechanics, and workshops.
Store benefits include:
- Genuine TOPTUL products.
- Authorized warranty according to product terms.
- Competitive prices.
- Flexible payment through Tabby and Tamara.
- Delivery inside and outside Saudi Arabia, subject to supported destinations.
- A specialized range of professional measuring tools.
- Equipment for workshops, engineers, and technical professionals.