Pending Discontinuation, Recommended Replacement: FLIR Fido X4

Fido® X3

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The Fido® X3 explosives trace detector (ETD) expedites on-site decision making with ten-second threat reporting via intuitive, go/no-go alarms. Its rugged magnesium case and splash-proof seal meet rigorous MIL-STD-810G and IP54 specifications. Fido X3 starts from cold in five minutes, contains a long-lasting, eight-hour battery, and clears down in seconds. With thousands of units fielded in over 40 countries, Fido X3 is a trusted handheld explosives trace detector for critical security applications.

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  • Best-in-Class Speed and Sensitivity

    Teledyne FLIR's patented TrueTrace® technology detects extremely low levels of explosives on surfaces (particulate) and in bottles (vapor) within ten seconds

  • Expedited Decision-Making

    Initial training takes 30 minutes, minimizing impact on day-to-day operations. Features fast five-minute start-up, color-coded alarms, and on-device video tutorials.

  • Built to Survive Harsh Environments

    Rugged construction meets rigorous MIL-STD-810G and IP54 specifications. Drop-tested to 1-meter. No radioactive ionization source and clears down within seconds.

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Input Voltage
100-240 VAC (wall adapter supplied)
System Overview
Battery Specification
Two rechargeable Li-ion batteries (swappable and up to 8-hr battery life); adapter included
Handheld Explosive Trace Detector
Enclosure & Protection
Molded magnesium and polymer composite casing with anti-corrosive coating
Teledyne FLIR TrueTrace™; multi-channel fluorescence technology; no radioactive source
Detects military, conventional, homemade, and liquid explosives
Operating Temp & Humidity
14 to 122 °F (-10 to 50 °C) 5% to 95% non-condensing
ASTM™ E2520
Storage Temperature
-4 to 122 °F (-20 to 50 °C)
Physical Features
Dimensions (L x W x H)
14.5 x 4.5 x 2.8 in (37.0 x 11.5 x 7.0 cm) - with battery
3.0 lbs (1.4 kg)
Start Up Time
< 5 minutes from cold; < 10 seconds from sleep
Sampling & Analysis
Sample Introduction
Direct vapor for bottled liquids or sampling swipes for surfaces
Sample Phase
Vapor and trace particulate
System Interface
USB; optional embedded wireless; Windows®-based software
Data Storage
3,500 hours of continuous data logging
Display & Alerts
Visible, audible, and haptic(vibration) alerts; vivid, sunlight-readable color display (32k colors)
Language translation available worldwide
User Levels
Operator and Administrator
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Fido® X3