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Material Science
Solutions for Molecular Spectroscopy


Handheld IR Chemical Identification Analyzer

TruDefender FT and TruDefender FTi Handheld for Unknown Chemical and Explosives Identification

Thermo Scientific TruDefender analyzers are rugged, handheld FTIR systems for rapid, field-based identification of unknown chemicals including explosives, narcotics, toxic industrial chemicals and precursors. They bring the power of FTIR directly into the hazard zone, enabling the responder to analyze—and act—faster than ever before. The TruDefender® FTi instrument adds to this core functionality by providing a direct link to incident command or reachback support through embedded mobile phone technology.


Lightweight and easy to use, TruDefender devices were built to meet the needs of first responders. They are ergonomically designed for use in Level A gear and rugged enough to withstand the rigors of field use.

Features include:

  • Fast, accurate identification. Returns results in seconds. Onboard hazard database provides full safety and treatment information.

  • Embedded mobile phone technology. Send results via e-mail or SMS text directly from the hotzone with the TruDefender FTi model.

  • Easy to use. Intuitive, menu-driven interface for fast training and proficiency.

  • Built for field use. Certified to MIL-STD 810G for ruggedness including drop, shock, vibration and operation in extreme temperatures.

  • Automatic mixture analysis. Enhances substance identification capability and eliminates the need for spectral subtraction.

  • Easy maintenance. Requires no scheduled maintenance, calibration, warm up or mirror alignment, and uses no consumables.


TruDefender FT

TruDefender FTi


2.9 lb (1.3kg)

3.40 lb (1.54kg)


7.7 x 4.4 x 2.1 in (19.6 x 11.2 x 5.3cm)

7.7 x 4.4 x 2.4 in (19.6 x 11.2 x 6.1cm)

Spectral Range

4,000cm¯¹ to 650cm-1¯¹

Spectral Resolution

4 cm¯¹

Collecting Optics

Solid Diamond Crystal ATR


Operating Frequencies

Quad band GSM - 850MHz, 900MHz, 1800MHz, 1900MHz


Independently tested for MIL-STD-810G and IP67 certification

SPC file, text file or JPEG report; downloadable or send via SMS text, e-mail or direct to reachback

SPC file (for use in standard spectroscopic software), text file, or JPEG report

Data Export Formats

Operating Temperature


Removable and rechargeable lithium ion battery or 123a (eg SureFire™) batteries; >4 hours operation

External Power Supply

Wall plug transformer 100-240 VAC 50/60 Hz

4 °F to 104 °F (-20 °C to +40 °C

Language Configurations (Optional)

English, Arabic, Chinese and Japanese


*Complete MIL-STD-810G test results available upon request