protool measuring tools blog

The Treasure Of Measure? (Digital Calipers)


Published: 27/08/2021

Asimeto was founded in 2007 by renowned German metrologist Manfred Eisinger. Since then, the company has rapidly established a reputation for manufacturing high-performance precision tools and solutions and delivering them at unexpectedly affordable prices.

Asimeto continues to win market share by applying German metrological design, American technological innovation and Asian manufacturing competitiveness across a broad range of integrated precision solutions, distributed through a global network. Every tool is ISO17025 certified for dependable accuracy and to ensure calibration is compliant with the regulatory requirements of each local market.

Increasingly, Asimeto is the choice of engineers the world over including companies like Volkswagen, Guhring and Boeing. 

We invite you to discover why.

digital calipers protool asimeto

What Is A Caliper?

A caliper is a tool used to measure the distance between two sides of an object: you can measure, with an accuracy down to 0.01mm, a size which otherwise would not be easily measurable with any other tool. Nowadays, digital calipers have become much more popular, due to being far more easier and more accurate.


What Is A Vernier Caliper?

These are similar to a slide rule: they are completely stick shift, so they are perfect for those who don’t get confused easily when it comes to reading numbers and measures. They have no dial or display, so reading must be calculated directly on the body (by lined increments). Due to misinterpretation, they are hard to read. Still, they are sturdy and shock resistant, in addition to being less expensive than dial and digital models. 


What Is A Dial Caliper?

This kind of caliper is relatively easy to use. They have a lined dial that shows the measurement, so all you have to do is add the slide measurement to have the exact and final measurement. Their cost is a little bit higher and they are less shock resistant compared to verniers.


What Is A Digital Caliper?

These are the ultimate tools for those who definitely aren’t math people, but also for taking highly precise measurements. They accurately display up to 0.025mm (0.001”) and can take absolute and incremental measurements. Obviously, digital calipers are more likely to be damaged from a shock; moreover, they may lose accuracy if you work in contact with oil or dust and they are more expensive than other types. Always remember to keep batteries with you, so you don’t risk finding yourself with a dead caliper while you work.

waterproof caliper

How Do You Choose The Right Digital Caliper? 

Choosing the right caliper can be fairly confusing or stressful, due to the amount of variations out there. However, they all do the same thing. They all measure to extremely high accuracy and that's what matters. 

If you need to bring in other factors, like think about the application environment, working in conditions where the tool would be prone to coming in contact with water or fluid, then you will need to think about a waterproof digital vernier. Our IP67 Digital Calipers 305 Series  conforms to the IP67 ratings. 

IP67 means the unit can be dropped into a body of water up to a meter deep for half an hour.

Any of our calipers which are not IP67, are just splash proof.

What Would We Recommend?


Absolute Digital Calipers 307 Series


  • Resolution: .0005" / 0.01mm
  • The caliper will be ready for measurements as soon as it is switched on with the LCD screen displaying the actual slider position. There is no need to set the zero position each time. The origin setting is retained even when the caliper is switched off
  • Absolute system delivers reliable measurement
  • Inch/Metric conversion
  • A thumb wheel is provided for easy using
  • Cable data output: 900-05-4/5
  • Wireless data output:
    Transmitter: 901-00-4/6
    Receiver: 901-00-3
Asimeto Digital Vernier - Absolute Digital Calipers - 307 Series

Big Screen Digital Calipers 306 Series


  • Resolution: .0005" / 0.01mm
  • Large screen: (53.5 x 15.5mm) LCD display area
  • Auto power off, extend battery life
  • Inch/Metric conversion
  • Memory function: Keep the reading even after the display has been turned off
  • Absolute measurement model with the function of data output (ABS type products)
  • Cable data output: 900-05-4/5 (ABS type products)
  • Wireless data output:
    Transmitter: 901-00-4/6
    Receiver: 901-00-3
Asimeto Digital Calipers - Big Screen - 306 Series

Digital Calipers 307 Series


  • Resolution: .0005" / 0.01mm
  • Extra large LED readout
  • The origin position is retained through the On/Off cycle
  • Inch/Metric conversion
Asimeto Digital Calipers - 307 Series

IP67 Digital Calipers 305 Series


  • Resolution: .0005" / 0.01mm
  • Absolute function, there is no need to initialize
  • Absolute or incremental measuring modes
  • Metal housing, the design will allow the caliper to be used in normal workshop conditions and is resistant to coolant, water, dust or oil
  • Conforms to the IP67 ratings
  • Interfaces are easy to read
  • Inch/Metric conversion
  • Auto power On/Off
  • With thumb wheel
Asimeto Digital Calipers - IP67 - 305 Series

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