Frequently Asked Questions

Responses to common topics of interest are provided below.  Additional information is available by contacting PLUS here.


How long has PLUS been in business?

The PLUS team has been involved in the development of fundamental ultra wide band (UWB) technology and location tracking applications of UWB technology since 2006.  PLUS was founded as a privately held company in 2011.

Does PLUS perform its product development in house?

Yes.  PLUS performs its own system, electronic, hardware and software design, and has in-house quick-turn prototyping capabilities.

Does PLUS perform its own manufacturing in house?

PLUS performs quick-turn prototype manufacturing in-house.  PLUS partners with proven contract manufacturing service providers for production volume manufacturing of custom plastics and electronic products.

Does PLUS install and support systems around the world?

Yes.  PLUS installs and supports systems around the world directly and via its reseller/dealer partners.

Where is PLUS located?

PLUS offices are located in Huntsville, Alabama and in Sydney, Australia.

Does PLUS have representatives located in my area?

PLUS is developing relationships with Value Added Resellers around the world.  To speak with a PLUS representative please contact us here.

Does PLUS sell kits for customer installation?

PLUS is a full-service RTLS solution provider, managing the complete planning, installation, configuration, and verification process of deploying a system. This approach guarantees a level of performance and customer satisfaction that is not possible by sourcing hardware kits to third parties. We encourage organizations to consider the total cost of ownership of a RTLS solution when making a choice between the PLUS full service approach, compared to “do it yourself” kits.

What compliance certifications do PLUS products carry?

Compliance certifications vary by product, but overall, PLUS products carry one or more of the following certifications.

  • FCC Part 15
  • TUV
  • IEC 60950
  • CE
  • UL
  • RCM

Can PLUS provide a demonstration of its solutions?

Yes.  PLUS can provide a demonstration of its solutions.  Demonstration may involve traveling to a PLUS office or to an existing customer site. To arrange a demonstration, please contact PLUS here.

How long does it take to install a PLUS system?

The installation time is a function of system complexity, but installation duration typically ranges between two days and two weeks.

Will PLUS provide OEM branded solutions?

Yes.  PLUS provides solutions and service through a network of resellers, dealers and partners and will provide OEM branded solutions.  Contact PLUS here for additional information if you are interested in augmenting your company’s offering with PLUS technology.

How much does a PLUS solution cost?

The cost of PLUS solutions is a function of the application-specific configuration.  To discuss your application and determine the required system configuration contact PLUS here.

What information do I need to provide to receive a quotation from PLUS?

PLUS will provide a detailed questionnaire to understand your application and requirements.  Depending on the application PLUS may need to travel to your site to observe details and discuss specific needs.  You can start the process by contacting PLUS here.

What is BlueCats?

BlueCats is a sister company to PLUS that offers a Bluetooth® beacon platform that provides secure, scalable location awareness for mobile applications.  Learn more about BlueCats at


What is Ultra Wide Band?

Ultra wideband (UWB) is a radio technology that uses very low power, short pulses of energy that enable very precise measurements of signal propagation time, and therefore precise distance measurement. UWB is approved for unlicensed communications usage in most areas of the world. For an expanded discussion go here.

How many objects can PLUS track simultaneously?

The number of objects that can be tracked simultaneously varies depending on the application.  The speed of the objects being tracked, how frequently the location of each object needs to be determined and whether or not additional sensor data is being passed along with the location data (e.g. biometric or other sensor data) determines the maximum number.  For slower moving assets, several thousand co-located tags can be tracked. For fast moving assets, several hundred co-located tags can be tracked. Across a larger area such as a corporate campus, a greater number of tags can be accommodated.

What is the accuracy of the PLUS system?

The theoretical accuracy of the PLUS UWB system is on the order of +/- 1cm.  However, no environment or application is ideal.  Examples of factors that influence accuracy include physical obstructions, RF reflective surfaces, moisture content of materials, site geometries and available reader mounting locations and the velocity of the object being tracked.  An average or typical accuracy is on the order of +/- 10cm.  A more important question than absolute accuracy is what the goals of the application are and the analysis of activity that is required.  Many applications have mixed requirements with certain zones or objects requiring only proximity detection (0D).  Others may need 3D tracking, while others may need high accuracy 2D tracking.  A core competency of PLUS is our ability to design system accuracy to enable the actionable intelligence needed by your organization.

How far can PLUS track an object?

The distance objects can be tracked is a function of Reader antenna gain.  Readers equipped with higher gain antennas can detect tags over several hundred meters of distance.

Can PLUS track objects in three dimensions?

Yes.  PLUS can track objects in 0D (proximity or presence/absence), 1D (position along a defined line), 2D (X/Y location in a defined space), and 3D (X/Y/Z location in a defined space).  Tracking in 3D requires access to unobstructed mounting points for readers at the correct geometries.  Once PLUS understands the application-specific requirements we may be able to propose a simpler path to the analysis and intelligence needed that can be achieved without the need for 3D tracking.

Can PLUS track objects outside?

Yes.  PLUS offers hardware packaging that provides the necessary ingress protection for outside use.  PLUS exterior solutions include;

  • Sport fields and stadiums
  • Areas near warehouse, distribution and manufacturing facilities
  • Military, security and emergency training sites
  • Off-shore drilling rigs

Can PLUS track objects in extreme temperatures? In rain?

Yes.  The configuration of the PLUS system varies depending on the application.  In general, the PLUS system is designed to operate from minus 20 degrees C to plus 55 degrees C.

The PLUS system also works in rain without any significant performance impact.

Can PLUS track objects through walls?

The PLUS system can track objects through gypsum board walls.  Other solid wall structures (wood, brick, concrete, metal) represent a barrier to the RF signal.  The design of the application-specific PLUS solution takes into account all RF barriers and ensures complete coverage to meet the required system functionality and performance.

How long do the PLUS tag batteries last? Are the batteries replaceable?

The battery life of PLUS tags is a function of the required tag rate (how frequently position or sensor data is sent) and the storage capacity of the tag battery.  Once the application-specific requirements are understood, PLUS will propose the optimum tag configuration to meet the need.  Depending on the tag configuration, batteries typically last from several weeks to several years.

PLUS offers both replaceable and non-replaceable battery tags to meet the needs of varied applications.

Can PLUS tags transmit data from accelerometers or other sensors or data sources?

Yes, the PLUS tag data protocol can incorporate data from accelerometers and other sensors or data sources.

Does the PLUS system require wired infrastructure?

The PLUS UWB system currently utilizes wired infrastructure (Shielded Ethernet) to provide the highest reliability, precise synchronization timing required for superior accuracy of the PLUS UWB system.  PLUS, via its sister company, BlueCats, can provide presence detection using proprietary low energy Bluetooth® (BLE) technology.

Can the PLUS system be hidden out of view?

Subsets of the PLUS system can be hidden from view.  At a minimum, reader (sensor) antennas must be able to establish line of sight communication with tags being tracked.  In some cases reader antennas are integrated with the reader in a single housing.  In other cases, readers may be mounted out of view (e.g. above a ceiling grid), and the antenna cabled and mounted separately.  For outdoor installations requiring no visible hardware aesthetic or architectural quality radomes can be utilized.