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  • First Defender Chemical ID System
Feb 2007
Thermo Scientific, Portable Analytical InstrumentsRequest Info

The First Defender handheld chemical identification system is the only lightweight, rugged handheld instrument for the immediate identification of unknown solids, liquids and mixtures even through the walls of their containers. The First Defender sets the standard for accuracy, applicability, durability, ruggedness and usability, far exceeding anything else available. Based on Ahura’s patented “optical engine” technology and turbo charged with Ahura’s mixture analysis software, the First Defender offers superior performance that is extremely easy to use. The First Defender was developed in collaboration with industry leaders in the military and first responder community and ID designed for use by first responders, soldiers, law enforcement and homeland security personnel. It is being quickly deployed to teams The First Defender is an all-optical system based on Raman spectroscopy.

Key features include:

  • Vast library including: WMD, chemical weapons, explosives, toxic chemicals, white powders, narcotics, contraband and forensics
  • Lightweight – Less than 4 lbs, including battery and internal computer
  • 5-hour operational battery life
  • Rugged, waterproof and chemically resilient
  • Operates over wide temperature range (-20 °C to 40 °C)
  • Dual mode (in sample vials or directly onto sample)
  • No calibration and no consumables
  • Operates through glass bottles and plastic bags without opening them
  • 24/7 support
  • Integrated NIOSH and CAMEO database for on-the-spot reference
The First Defender offers our user community many benefits:
  • Identifies liquids, solids and mixtures form a vast library of substances and millions of combinations in under a minute
  • Boot-up time is under a minute
  • Sampling is non-contact, non-destructive and requires no preparation
  • Able to identify mixtures of powders, liquids, chemicals in aqueous solutions and even solid/liquid combinations
  • Designed to be operated easily in protective clothing
  • Easy to decon
  • Sophisticated algorithms allow users to easily obtain correct results at the scene without false positives and false negative results
  • Point-and-shoot operation through containers avoids contamination and maintains evidence
You can count on the First Defender to deliver reliable results in all weather conditions and environments.


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The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
Raman spectroscopy
That branch of spectroscopy concerned with Raman spectra and used to provide a means of studying pure rotational, pure vibrational and rotation-vibration energy changes in the ground level of molecules. Raman spectroscopy is dependent on the collision of incident light quanta with the molecule, inducing the molecule to undergo the change.  
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