Identifies military, commercial, and homemade explosive threats by class collected from surfaces (particulate). Featuring a durable ergonomic design, the Fido X2 is ultra-lightweight for maximum portability. On-screen prompts guide users through operation. It starts from cold in three minutes and has a battery that last up to three and a half hours.

Ultra-Lightweight Explosives Trace Detector
Fido X2 is an ultra-lightweight, handheld explosives trace detector (ETD). It features FLIR’s proprietary TrueTrace™ technology to detect a broad range of chemicals used in the manufacture of homemade, commercial, and military explosives with best-in-class sensitivity.  On-screen prompts guide users quickly through operation. 

Superior Performance
At less than 1.5 pounds and featuring a durable, ergonomic design, the Fido X2 offers maximum portability. Intended to be used at security checkpoints or during periods of high alert, Fido X2 screens vehicles and personal belongings for explosives residue that might indicate contact with explosives or incendiary devices. With analysis provided in ten seconds or less, law enforcement officers can quickly and accurately screen for threats to mass transit, sporting arenas, and critical infrastructure with confidence.

Fast, TrueTrace Detection
FLIR's field-proven TrueTrace technology detects a broad range of explosives including homemade, commercial, and military withbest-in-class sensitivity. Fido X2 performs fast ten-second analysis and provides cost-effective operation with reusable sampling swipes. The quick three-minute start-up maximizes system operational availability.

Simple, Guided Operation
On-screen prompts and simple go/no-go alarms guide users through operation and aid in sampling and decision-making. Fido X2 features on-device video training that provides real-time help and reduces the cost and logistical burden of recurrent training.

  • TrueTrace detection in ≤10 seconds
  • Detects broad range of threats
  • Quick three-minute start-up
  • Rapid clear-down in seconds
  • Intuitive, go/no-go alarms
  • On-screen guided operation
  • On-device video training
  • Ultra-lightweight <1.5 lbs.
  • Reusable sampling swipes
  • No radioactive ionization source
  • No hazardous chemicals



FLIR TrueTrace™; multi-channel fluorescence technology; no radioactive source

Sampling & Analysis

Sample Acquisition

Surface wipe with reusable sample swipe

Sample Phase

Trace particulate


Detects homemade, commercial, and military explosives

System Interface


Vivid, sunlight-readable color display (32k colors)


Visible, audible, and haptic (vibration) alerts


Language translation available worldwide


USB 2.0 (Mini-USB)

Data Storage

10,000 discrete files; First-in, First-out (FIFO) automatic overwrite

Data Management

On-device report generation; export to mass storage

User Levels



Input Voltage

100-240 VAC (wall adapter supplied); runs device and charges battery simultaneously

Battery Specs

Rechargeable and swappable Li-ion battery; adapter included

Cold Start Time

3 minutes from cold


Operating Temp / Humidity

32 to 113 °F (0 to 45 °C) / 5% to 95% non-condensing


14 to 122 °F (-10 to 50 °C)

Physical Features

Dimensions (L × W × H)

12.7 x 3.9 x 2.8 in (32.2 x 10.0 x 7.2 cm) - with battery


1.5 lbs (680.4 g)

Enclosure & Packaging

Flame retardant PC-ABS alloy with aluminum reinforcements

1. What is the Fido X2?

It is a handheld explosives trace detector (ETD) that weighs less than 1.5 lbs (680 g). It combines sensitivity, speed, and ease of use to aid law enforcement, rst responders, and private security teams with an enhanced security capability.

2. What does it detect?

It detects most common explosives, taggants, and propellant powders. Some examples are PETN (Det Cord, Semtex), RDX (C4), TNT, Ammonium Nitrate, ANFO, Urea Nitrate, TATP, Black Powder, Smokeless Powder, Nitroglycerin, EGDN, and HMTD.

3. How is it used?

It is used to screen vehicles, packages, and personal belongings for trace (invisible) amounts of explosive residue. Trace evidence may indicate that someone or something has been in contact with explosives. Fido X2 can be used to deter or interdict an immediate threat and also provide valuable intelligence that can disrupt the threat chain “left of boom.”

4. What are the deployment options?

Fido X2 is primarily used in entry control checkpoints, random screening checkpoints, and during elevated threat patrol.

5. How will it help me do my job?

Whether your job is to provide physical security in the public or private sector, Fido X2 adds an extra layer of protection with no extra hassle. It is easy to learn and use. On-screen prompts, graphical walkthroughs, and on-device help and video training assist users with daily operation. Fido X2 is fast. It warms up in less than three minutes, analyzes samples in less than ten seconds, and clear-down is measured in seconds. There is no routine maintenance required, meaning Fido X2 is always ready.

6. How much training is required?

Basic training can be completed in as little as 15 minutes. Up to three people per system get free access to our online training course for one year. 

7. How do I collect a sample?

Samples are collected from surfaces using high ef ciency sampling swipes included with the Fido X2. A number of surfaces can be sampled like a box or vehicle that may have come into contact with explosives. Personal belongings like bags or cell phones that may have come into contact with someone who handled explosives can also be sampled. The particles present on the surface are transferred to the swipe and are available for detection by the Fido X2.

8. Get technical. How does the Fido X2 work?

The operator inserts the sample swipe into the Fido X2. Upon insertion, the swipe is heated and trace particulates transfer into the vapor phase. An internal pump pulls the vapor phase molecules across its patented TrueTraceTM sensing materials. These sensing materials temporarily and reversibly bind the molecules, causing a change in light that is measured by the detection platform. No radioactive ionization source is needed to produce this result. An explosive is “sensed” when the light output of one of the sensing materials changes in a unique way. The light output change is measured by the ultrasenstive light detector. Once a threat is detected, the Fido X2 automatically displays the identity or class of explosive on its screen.

9. What is TrueTrace technology?

TrueTrace is a multiplexed detection approach that combines uorescence and chemilluminescence techniques, including a proprietary detection material called ampli ed uorescent polymer (AFP). Each TrueTrace sensor interacts with speci c classes of explosives to provide ultimate sensitivity and selectivity.

10. Why would I want a TrueTrace detector?

Fido X2 offers several key advantages, including lighter weight, faster clear down, and higher sensitivity. Unlike Ion Mobility Spectrometry (IMS)-based ETDs, TrueTrace-enabled ETDs do not require a preloaded library and detect many emerging explosive formulations without modi cation. The TrueTrace open sample ow path enables clear-down in seconds, so subsequent screenings are performed quickly. Fido X2 does not ionize the sample, so a radioactive source is not needed.

11. What amount of sample can be presented to the Fido X2?

It is designed to detect explosives that are invisible. We call this trace level. The Fido X2 can detect trace levels of explosives at the picogram (1 pg = 1.0 × 10-12 g) and nanogram (1 ng = 1.0 × 10-9 g) levels. For reference, a dollar bill or paperclip weigh about 1 gram.

If the amount of explosives is visible on the swipe, this is too much and should not be presented to the Fido X2. It will detect explosives in a visible sample, but the system may require the sensing element to be replaced which takes less than 3 minutes. The inlet may need a quick 5-7 minute cleaning.

12. How long does clear-down / bake-out take?

Fido X2 reliably clears down within seconds after an alarm. There is no need for a system bake-out.

13. Why does it clear down so much faster than IMS?

An IMS recycles the sample ow in a closed loop system, so after an alarm the threat material passes through the lters, drying tubes, and membrane until it is baked out. Fido X2 does not have any lters or membranes and uses an open ow path so the threat material can be eliminated from the detector almost immediately.

14. Are there consumables? Can they be re-used?

Yes. The Fido X2 uses disposable High Ef ciency Sampling Swipes for sample collection. The swipes can be reused up to ten times, until an alert occurs, or until it is visibly dirty. The Fido X2 also has a user-replaceable Sensing Element. Depending on usage, it can be replaced every six to eight hours or as needed to ensure optimum detection. The Fido X2 will prompt the user when it is time to change the sensing element. No other consumables are required.

15. What is the maintenance requirement?

It can be cleaned periodically to ensure optimum performance, but Fido X2 does not require routine maintenance.

16. Are there any hazards to be aware of?

Unlike other handheld ETDs, the Fido X2 does not contain a radioactive source or any hazardous chemicals. The Fido X2 uses a Lithium Ion battery, which may require special labeling during shipment depending on the country.

17. What happens if I drop it?

Operational environments can be tough. Fido X2 is designed to withstand an occasional drop. If a hardened system is needed, consider moving up to the Fido X3. It is MIL-STD 810G tested for shock and vibration, 1-meter drop tested, and water and dust resistant with an IP-54 rating to survive some of the harshest environments on earth.

18. How long does the battery last?

The Fido X2 kit comes with two rechargeable lithium ion batteries. Each battery lasts up to three and a half hours under normal use. The battery charges in under two hours and can be charged while installed. If a longer battery life is needed for all-day use, consider moving up to the Fido X3.

19. What is the startup time?

The system takes approximately three minutes to startup.

20. Do you provide foreign language support?



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