The market-leading and technically advanced DP II+ computer caliper – program, customize and & accessorize it to fit your exact diameter measuring requirements!


has become



The DP II+ is an easy-to-use, versatile and super efficient diameter instrument system, adapted for timber cruising, log scaling, and standing tree inventory. Many attractive features make the DP II+ an optimized and complete solution for modern measurement work in forests and on industries.

DP II has become DP II+

Almost three times faster with a 120 MHz floating-point processor, 8 GB flash memory and a better display with backlight.


The DP II+ is field-ready, fully adapted, rugged and with a well balanced and durable construction. You will quickly notice how easy is communicates through USB, Bluetooth® & IR. It is compatible with your Vertex 5, the Vertex Laser Geo, the Laser Geo, your PC or other handheld. Since your DP II+ is fully programmable we have made a truck-load of program options and ready-made software applications. Nevertheless we are always keen on customizing applications for you and your organization. If you feel it is hard to choose, and when your work includes measurement of both standing trees and timber, scaling and cruising, calibration and taxation, you can load your DP II+ with more than one program and switch between the different applications. 

With the DP II+ you get great field computing features. You work with a rugged field machine with foldable jaws (takes up less space, and is easier to carry with you when moving in the forest). The detachable computer terminal can be used as a stand-alone handheld computer – and if your DP II+ is equipped with the Radio Enter button, you can keep the tiny (but powerful!) computer in your pocket and send diameter data from your SmartScale. 

The DP II+ offers a multilanguage operating system, a non-contact SmartScale measuring system; and rechargeable, long-lasting batteries. Add value and versatility by using the unique accessories and add-ons uniquely designed to use with the DP II+.

The DP II+ is tested. Certified. Approved. Contact us for discussions on how the DP II+ can be used to increase your efficiency!


All Haglöf Sweden products are designed for field professionals who work outside in more or less extreme conditions. The DP II+ caliper meets the demands and specifications of foresters regarding dust, shock, vibration, temperature, pressure, moisture and overall user friendliness. 


Haglöf Sweden have worked with software programming for field applications for 25 years. We have a great selection of ready-made solutions for most jobs in forest and field, and in many languages. Contact us with your ideas for how you wish to work. Together, we will come up with a solution that fits you and your organization!

— Forest inventory – Timber Cruising – Log scaling — Harvester Calibration— Wildlife & fish inventory — Construction

Short lead time. Quick customization. Professional development.

Ask for customized software, specifically designed for your organization! Work seamlessly; streamline your flow, and most importantly – work the way you want to work, with reports and results presented to you the way you need them to be. Take advantage of our big treasury of ready-made systems. Combine your expertise with our experience and our common will to explore new solutions and ideas. Together we will make it work!

Computing power in the field

The DP II+ incorporates great data processing and calculation capacities. Your workday can start and finish off in the forest, with your portable office in the pocket-size DP II+ computer terminal. All data securely stored and processed in one safe place!


DP DME - distance measurer

The DP DME is a distance measurement system compatible and used together with the DP II and Digitech Professional calipers. The DP DME works with Haglöf Sweden’s well-known and proven reliable ultrasound technique. Read more DP DME. Also available as a combination module to navigate to your sample plots and other areas of interest: DP GPS DME

DP POSTEX - distance measurer with positioning

The DP II+ with the DP Postex accessory and corresponding software application allows you to measure, record and set position on individual trees. The method is used in research areas and for long-term studies. Read more DP Postex®


The Digitech Tape is an electronic measuring tape mainly used for Harvester Calibration and log scaling. The Digitech Tape can also be used as a diameter tape with the computer terminal and software application. Read more Digitech Tape.

Digitech® Keyboard

Lots of data input and many different alpha-numeric variables? Read more Digitech® Keybord

Powerbank, emergency charger

Even though you can work more than a week on a recharge, Don’t let an empty battery stop you! Emergency charger for battery charge in the field.

Gator Eyes

Windthrows or streaming water in the way to measure the tree? The Gator Eyes laser pointers enable diameter measurement from a distance. Read more Gator Eyes.

Bluetooth® printers

Wish you could move your office to the forest? We provide complete solutions and accessories such as quality tested Bluetooth® printers and GPS instruments.

DP GPS module

Use the DP GPS module to navigate and position in the field and directly with any DP computer caliper.


Add-on combination module for navigation and distance measuring with ultrasound on your DP computer caliper. 


With the DP Postex® installed, your DP caliper can be used to position individual trees and other objects.

  • Computing power, calculate and store in the field
  • 120 MHz floating point math processor
  • 8 GB Flash non-volatile high security storage
  • Store hundreds of thousands of trees or logs*
  • Calculate volumes, geographical positions, prices…*
  • Generate different file formats such as CSV, KML, XML, JSON, GeoJson…*
  • Large library of software applications
  • Customizable to meet your application needs
  • Add-on modules for additional functionality
  • Rugged; moisture & dirt protected, sealed & secure
  • USB, Bluetooth and IR communication capacities*
  • Multi-day operating time*

* May vary depending on software application, functionality and connected modules



1GB Flash File System non-volatile high security. 2Mb high-speed RAM. 8Mb Flash for program storage.

Processor Low power Arm Cortex Cpu 120MHz inc. floating point unit.
Temperature Min -20° Max 60° C/ Min -4° Max 140° F.
Rechargeable Li-ion, USB-interface charge
Consumption One week/charge/ software depending.
  • 6 Keys.
  • 2 Execution/Enter; One on keyboard and one on handle for index finger
  • 4 Navigation keys on the keyboard; Up, Down, Left and Right,
  • Double key quick commands: Display light, Sleep mode, Escape/Return and IR input
  • Technical: Non contact, sealed.
  • Scale: Aluminum, non reflecting, clear digits.
  • Jaws: Foldable aluminum, Patented.
Accuracy +-1mm or 0.039 inch
Resolution Min 0.1mm/0.01”

Standard; 500, 650, 800, 950 and 1020 milimeter and 18”, 24”,  30”, 36” and  40” inch.

Scale lengths German certification/classification: 500mm; 600mm; 800mm, 1000mm.

  • Caliper and terminal: <1kg/2.20 lbs (500mm/18” standard).
  • Terminal only: 150g/6oz.
Display Graphic, 128 x 64 pixles. Highly efficient background light.
  • USB 2.0 MSD;
  • External serial port via adapter
  • USB (CDC) via adapter.
  • Bluetooth® v4.2 dual mode: (SPP, HID KEYBOARD, BLE)
  • IR receiver for all Vertex and Geo models.
Bluetooth® Bluetooth® v4.2 dual mode: (SPP, HID KEYBOARD, BLE)
Clock Real Time Clock with calendar and time.
Signal Built-in loudspeaker.
IP Classification
IP67 Moist/dust resistant
Classification PTB, FPA, CE, FCC.