The FLIR identiFINDER R440 is a lightweight, sourceless radioisotope identification device (RIID) that can be operated with one hand and is IP67-rated to survive tough missions. Not only does the 2x2 NaI detector deliver sensitive and fast detection, but it also provides accurate identification during secondary screening. The new 360° EasyFinder™ Mode expedites decision-making to keep you safe.

Highly Sensitive 2x2 NaI Detector

Detects radiological threats from farther away, behind heavier shielding, and with better resolution than similarly sized RIIDs.

Rugged Construction

Drop-tested up to 1 meter and built to survive rigorous missions, with completely enclosed crystal and IP67-rated enclosure that protects against dust and water immersion up to 1m.

State-of-the-Art User Features

360° EasyFinder Mode pinpoints and instructs the operator on the exact location of a radiation source to keep responders and the community safe.

  • 2x2 NaI DETECTOR
  • IP67-RATED


Model Number FLIR R440
Technology Radioisotope identification device (RIID)
Gamma - NaI(TI) 2.0 x 2.0 in (51 x 51 mm)
Gamma / Neutron - NaIL (optional) 2.0 x 2.0 in (51 x 51 mm)
Energy Range (Gamma) 10 keV to 10 MeV
Gamma Sensitivity (Cs-137, NaI) 1850 cps/μSv/h
Gamma Spectrum Length 1024 channels
Dose Rate Range (Cs-137, NaI) 10nSv/h - 10mSv/h (1µrem/h - 1rem/h) / ±30 %
Dose Rate Range ID Mode (Cs-137, NaI) 10nSv/h - 250µSv/h (1µrem/h - 25mrem/h)
Overload Dose Rate Range (Cs-137, NaI) 10mSv/h - 500mSv/h (1rem/h - 50rem/h)
Stabilization Sourceless gain stabilization (patents pending)
Linearization Real-time linearization of gamma energy
Typical Resolution ≤7% FWHM at 662 keV with NaI detector at 20 °C
Service Interval 1 year factory maintenance suggested, not required
Sample Introduction Absorption of EM gamma (NaI) or gamma and neutron emissions (NaIL)
Threats Detects neutron or gamma radiation emitted from natural occurrences in the environment, special nuclear material, industrial, or medical material
Nuclide Identification According to ANSI N42.34
Library Categories SNM, IND, MED, NORM
Time to Alarm From a few seconds to minutes
System Interface
Display & Alerts Transflective color LCD / 3” (2.72" x 1.61") Color TFT Display, Resolution: 800 x 480 pixels
Communication USB 2.0, USB OTG; Bluetooth® Class 2.0 ≤10m range (removable); WiFi 802.11 g/n
Data Storage 32GB internal memory
Training Requirements <10 mins for operator; 1 day for advanced user
GPS (removable) 12-channel SiRF III receiver
Software On-board webserver software
Input Voltage 100-240V AC (wall adapter and USB cable supplied)
Battery Specs Supplied: 2x rechargeable Li-Ion smartpacks and 1x 4x AA pack; ≤6h runtime with one Li-Ion smartpack, ≤12h with both Li-Ion; runtime of ≤4h with AA battery pack (Li-ion);Optional rechargable NiMH ion smartpack with ≤5h runtime; recharge ≤4h when using AC; recharge >4h when using USB; run times specified are obtained with a mix of Dose Rate, Finder, and ID operating mode
Cold Start Time <2 mins from cold start
Operating Temp (ambient) -4 to 122 °F (-20 to 50 °C)
Operating Humidity 10 to 80%
Storage Temp 14 to 95 °F (-10 to 35 °C)
Phystical Features
Dimensions (L × W × H) ≤ 4 x 10.6 x 3.7in (10.2 x 26.9 x 9.4)cm - with battery
Weight ≤3.2 lbs (≤1.5 kg)
Enclosure & Protection Aluminum housing; protection rating IP67 according to IEC 60529

Make an Enquiry