Analytical Spectral Devices Inc. (ASD)

Incorporated in 1990 as Analytical Spectral Devices Inc., ASD is now a privately held company based in Boulder, Colorado, USA. The company was established to address a fundamental need of earth science researchers for a robust, high-performance, portable instrument that could be used for in field work.

Responding to this need, two renowned remote sensing scientists, Dr. Alexander F. H. Goetz, Director of the Center for the Study of Earth from Space (CSES), and Dr. Brian Curtiss, a senior scientist at CSES, designed and produced the Personal Spectrometer II (PSII), the world’s first truly portable, rugged, research-grade spectrometer.

The PSII was quickly embraced by fellow scientists around the world as a practical and necessary tool to do their work. Subsequent generations of portable field instruments, trademarked under the name FieldSpec®, earned ASD world-wide recognition as the number one portable instrumentation supplier for remote sensing scientists and field researchers.

Today, the FieldSpec® 4 hand-held instrument provides researchers with a complete suite of instruments for all of their field work needs.

ASD successfully expanded beyond its origins in the scientific markets, into industrial manufacturing markets, by providing instrumentation solutions for the real-time measurement of non-homogenous materials in manufacturing and quality control environments.

ASD’s industrial instrument lines now include QualitySpec® 7000 for on-line and near-line process control, LabSpec® 4 for material inspection and identification in the field and lab,  FieldSpec® 4 for pharmaceutical validation, and TerraSpec® 4 for mining and exploration.

ASD’s legacy is one of innovation and leadership in addressing customers’ needs, providing the latest technologies, combined with the highest standards of quality and service. PAS will continue with ASD’s products to provide our customers with value enhancing solutions for their materials measurement needs now and into the future.

Analytical Spectral Devices Inc. (ASD) Products

Mining and Exploration

Mining and Exploration Portable Analytical Solutions (PAS) offer more than one analysis option for your mining and exploration projects; Chemical/ Elemental analysis is achieved using Thermo Fisher Scientific’s range of Niton hand-held x-ray fluorescence (XRF) analysers, and Mineral analysis is achieved using ASD Inc.’s range of Near Infra-red (NIR) Spectrometers. Speak to our team of specialists … read more.


High Performance NIR Spectroradiometers and Spectrometers  ASD Inc., a PANalytical company is recognized worldwide for providing high performance analytical instrumentation solutions to industrial and scientific markets. The ASD Inc. team solves real-world natural resource materials measurement problems.ASD Inc. was founded in 1990 and continues to design, manufacture, and sell sophisticated Near-Infrared (NIR) spectroscopy instruments, solutions and applications expertise … read more.

FieldSpec Dual Collection Software

The FieldSpec® Dual collection software system leverages the value and utility of the world’s most trusted line of portable field spectrometers. The software intercalibrates and wirelessly synchronizes two ASD FieldSpec spectroradiometers to collect near simultaneous white reference and sample target radiance spectra. The system virtually eliminates errors associated with time varying atmospheric conditions, one of … read more.

ASD Terraspec Halo

Introducing the PANalytical ASD TerraSpec® Halo, the quickest way to identify minerals. The TerraSpec Halo is a lightweight, portable, full range near-infrared spectrometer designed to revolutionize the mineral exploration process. With a simple push of a button, the TerraSpec Halo delivers mineralogy results in a matter of seconds, a rapid method to identify minerals and … read more.

Instrument Rentals

PAS offer the opportunity to rent reliable, fully serviced Niton XRF Analysers for short or long term periods for Mining, Environmental and Alloy sectors. Perhaps you would like to trial an instrument for a new application? Or you are an existing customer that requires a second unit for a short time? Here at PAS we offer … read more.

ASD TerraSpec 4

ASD TerraSpec 4 Hi-Res The ASD TerraSpec 4 Hi-Res mineral spectrometer is now available, designed to meet the needs of the modern explorer. The ASD TerraSpec 4 Hi-Res mineral spectrometer uses a 6 nm resolution and enhanced performance in the SWIR 1 and 2 regions too quickly and accurately measure diverse geologic samples, including those with darker … read more.

ASD FieldSpec® 4

FieldSpec® 4 Hi-Res The ASD FieldSpec® 4 Hi-Res spectrometer has been designed for faster, more precise spectral data collection in remote sensing applications. The enhanced spectral resolution of 8nm offered by the portable, ruggedised Hi-Res model is well suited to geologic applications and other fields of research that requires definition of narrow spectral features, especially in … read more.

ASD Handheld 2

The FieldSpec HandHeld 2TM and HandHeld 2 Pro — the latest in the FieldSpec line of premier spectroradiometers from ASD, the global leader in remote sensing spectroscopy instrumentation solutions. What’s New in the HandHeld 2   Now available with GPS capability!   On-board, tilting display for immediate spectrum display   Local push-button operation   Internal file storage of up to … read more.

ASD LabSpec 4

The ASD LabSpec 4 line of near infra-red lab instruments is portable and precise. This advanced new line features an improved optical design, which provides a faster speed of analysis while yielding the best possible analytical results on a wide range of materials, including solids, powders and liquids. Improvements to the ASD LabSpec 4 line provide … read more.

ASD LabSpec 4 Bench

The ASD LabSpec 4 bench is configured specifically for fixed –location analysis with AC power, this bench-top analyser provides all the performance of ASD’s LabSpec 4 spectrometer line in a space –saving and cost effective design. The bench-top analyser features a sophisticated near infra-red (NIR) spectroscopy at a 10nm resolution for accurate measurement of a wide … read more.

ASD QualitySpec® 7000

The ASD QualitySpec® 7000 process Spectrometer is ideal for measurement of process materials transported on conveyance systems. The system is designed for continuous measurement of solids, powders and blended materials, providing multiple measurements from a single point. The ASD QualitySpec® 7000 analytical system is comprised of a control cabinet and optical head. The compact optical head … read more.