Skip to main content

PQI 380

Next Gen – non nuclear asphalt density gauge

Motorway Tech presents the PQI 380, TransTech Systems next generation asphalt density gauge.

Fully imported from the USA, the PQI 380 is equipped with full colour graphics driven user interface and a touch screen display. Used by leading road construction companies the PQI 380 is robust, yet totally portable with readings generated in seconds
Download Brochure
User Manual
Quick Start Guide
Offset Cheat Sheet

Product highlights

Non-nuclear technology
Asphalt density readings in 3 seconds
Full colour VGA display
LED backlight for easy visibility in light or dark situations
Customisable project entries and mix entries
4 reading modes
Diagnostics mode
Download data files from the PQI 380 via USB drive
Data management screen and the ability to disable data logging
Rugged, lightweight, aluminum shell
Handle extension attachment
Reflective vinyl graphics for higher visibility at night
Fast, reliable, accurate, and repeatable readings in real time
No need for badges or licenses
No storage or transport concerns


Some of the specs for the PQI 380 include:

  • The PQI 380 has four modes:

    • Single – Reading time less than five seconds and stores data.
    • Average – Averages five readings and stores data including date and time. Stores thousands of records.
    • Continuous – Instantaneous density readings.
    • Segregation – Identifies variations in material density associated with segregation.
    • Sensing Area: 11 in (27.9cm) diameter base allows optimum measurement on fine and coarse material types
    • Measurement Depth: User selected and adjustable from 1 in to 4 in (25mm to 100mm)
    • Measurement Display: Density, % Compaction, Surface Temperature, Mix Name & Project Name
    • Unit Weight: 14.2lbs (6.44kg)
    • Unit Dimensions: 11 in x 11 in x 12 in High (27.9cm x 27.9cm x 30.4cm) with handle extension 29in High (73.6cm)
    • Shipping Weight with Case: 49lbs (22.22kg)
    • Shipping Dimensions: 17.5in x 18.5in x 20in (44.45cm x 47cm x 50.8cm)

Download the PQI 380 Brochure below to view the full detailed list of specifications.

Video Tips

Frequently Asked Questions

When should I charge my PQI 380?

When the voltage indicator on the status bar reads 6.5volts. It is also a good idea to charge the PQI 380 at the end of the day after use.

Will the PQI 380 operate while charging?

No, the PQI 380 is not operable while charging. An external battery charger can be purchased along with a second battery pack. Contact us for more information.

How will I know when the PQI 380 is fully charged?

When the LED indicator on the back of the gauge changes from red to green.

Should the PQI 380 remain in its original shipped case?

Yes, each case contains a standardization plate unique for that specific gauge.

Is it necessary to calibrate the PQI 380 annually?

Yes, Motorway Tech suggests annual calibration of the PQI 380 gauge.

What type of cleaning agents, if any, should be used to clean the sensor area of the PQI 380? How often?

WD-40 is a good cleaning agent. It is very important to spray the WD-40 on a rag and use on the sensor. DO NOT spray WD-40 directly on the sensor. Use when there is significant asphalt build up on the sensor. Be sure to clean the sensor after each days use.

Does Motorway Tech provide training for the PQI 380?

Please call 1300 416 313 to arrange dates and for any additional training information.

Is the PQI 380 available in languages other than English?
Yes, we can also program the interface for Chinese, French, German, Japanese, Norwegian, Polish, Russian, Spanish or Swedish.
What type of warranty is available with a new PQI 380?
We offer a 1 year warranty on parts and labor for issues related to materials and workmanship on all new PQI 380’s.

Follow us for regular updates, research, news, and product information.

Get in touch with our team today for orders and enquiries.