Symetrica VeriFinder™ S100
Tactical handheld radionuclide identification device (RID)
Symetrica designed the S100 to be compact, lightweight, and balanced for operators who may carry it through long shifts. It offers 14 hours of continuous operation to detect, locate, measure, and identify radioactive sources, with a NaI(Tl) gamma detector and, in the standard configuration S100-1N2, a 3He-free neutron detector.
Search, locate, identify and verify
Here is how the S100's figures line up with each stage of a radiological search, from switch-on to a confident result.
Switch on and sweep
Symetrica states its Discovery Technology lets you "Switch on and operate in high radiation fields."
- Response time
- Instant response to sources (0.2 s)
Close in on the source
Dose rate is measured across a wide span, and the response stays continuous through temperature shock on a 1GHz CPU.
- Dose rate measurement
- 10 nSv/h to 900 mSv/h (1urem/h to 90 rem/h)
Name the isotopes
Symetrica states it "Identifies multiple isotopes simultaneously with high confidence" and "Identifies over 50 nuclides including masked and shielded cases."
- Sampling time
- User settable from a few seconds to 60 mins
- Maximum dose for ID
- 1 mSv/h (100mrem/h)
Trust the call
Discovery Technology is credited with "High true-positive and low false-positive isotope identification", and Symetrica highlights "Exceptional detection capabilities for Special Nuclear Materials."
- Identification
- Exceeds ANSI N42.34
Same crystal, sharper answer
Symetrica describes Discovery Technology® as a combination of its hardware and patented algorithms, using on-board processing for spectral enhancement. The headline is effective resolution: the S100's NaI(Tl) detector is quoted at two figures for the same 662 keV 137Cs line.
Symetrica states that its advanced algorithms "enhance the effective resolution of the gamma detection system", for reliable low-level detection and fast, simultaneous identification of multiple and masked isotopes in challenging environments. It also states Discovery Technology is "deployed in thousands of systems globally from handheld RIIDs to fixed infrastructure Radiation Portal Monitors (RPM)."
What Symetrica says it delivers
- High true-positive and low false-positive isotope identification.
- Identification of masked isotopes that cannot normally be resolved when analyzing raw spectra.
- Fully functional and accurate operation through temperature shock.
- Switch on and operate in high radiation fields.
- Reliable and scalable 3He-free neutron detection even in high gamma exposed fields.
- Predictive maintenance and no annual calibration required.
Symetrica states Discovery Technology "outperforms other systems with the same scintillator by increasing the effective resolution of the deconvolution spectra during identification."
Two detectors, one grip
The standard configuration, S100-1N2 (Part # 400-0160), pairs a sodium iodide gamma detector with a lithium-6 neutron detector that needs no 3He. Configuration questions? Ask us.
Symetrica claims a class leading "Minimum Identifiable Amount" (MIA) using patented algorithms, with identification that exceeds ANSI N42.34.
- Detector volume
- 43 cm3 (2.6 in3)
- Energy range
- 25 keV - 3 MeV
- Effective resolution
- 2.2% FWHM at 662 keV 137Cs
- Raw resolution
- <8% FWHM at 662 keV 137Cs
Symetrica states the neutron detector "is free of 3He" and uses 6Li technology to achieve leading-class sensitivity.
- Detector size
- 2.7 cm dia. X 11 cm (1" dia. X 4.3")
- Capability
- 252Cf 20,000 n/s @ 0.6 m/s @ 0.25 m (2 ft/s @ 10 in)
- Energy range
- 0.025 eV to 15MeV
- Dosimeter / Mission Dose modesTrack exposure on the instrument.
- Gamma dose accuracy± 10% for 137Cs.
- Inbuilt neutron moderatorFor handheld use, enabling ALARP (As Low As Reasonably Practicable) on the neutron model.
Built for the long shift
Symetrica calls the S100 "the most mission-oriented handheld radionuclide identification device (RID)." These are the field claims behind that line.
The hard case appears in our listing photos; confirm what ships with your unit when you request a quote.
- 01
No annual calibration
Symetrica claims "Up to 10 years of service without annual calibration", supported by automatic and continuous end-to-end digital calibration and health monitoring. Its patented stabilizing system is meant to keep the S100 at the same performance for up to 10 years.
- 02
Immune to temperature and environmental conditions
Symetrica lists it as "Immune to temperature fluctuations and environmental conditions." Operating temperature is -20 to 50˚C (-4 to 122˚F), with IP67 ingress protection (IEC 60529).
- 03
Compact, light and balanced
An "Ergonomic and compact design for extended use": 29.2 x 11.8 x 11 cm (11.5 x 4.6 x 4.3 in) and 1.3 kg (2.9 lbs), with a 3.5 in. (8.9 cm) display.
- 04
Power and data
An integrated Li-ion battery rated for 14 hrs of run time, plus Bluetooth, WiFi and USB-C communications. Symetrica cites "Low life-cycle costs due to continuous digital stabilization and health monitoring."
S100 specifications
| Overview | |
|---|---|
| Mission | Search, Locate, Identify and Verify Radioactive Threats |
| Technology | Radioisotope identification device (RID) |
| Model | VeriFinder™ S100 |
| Standard configuration | S100-1N2 (Part # 400-0160) |
| Performance | |
| Identification | Exceeds ANSI N42.34 |
| Response time | Instant response to sources (0.2 s) with continuous operation through temperature shock with 1GHz CPU |
| Sampling time | User settable from a few seconds to 60 mins |
| Health status monitoring | Automatic and continuous end-to-end digital calibration and health monitoring |
| Gamma | |
|---|---|
| Detector type | NaI(Tl) |
| Detector volume | 43 cm3 (2.6 in3) |
| Effective resolution | 2.2% FWHM at 662 keV 137Cs |
| Raw resolution | <8% FWHM at 662 keV 137Cs |
| Energy range (gamma) | 25 keV - 3 MeV |
| Performance | Class leading 'Minimum Identifiable Amount' (MIA) using patented algorithms. |
| Dose | |
| Maximum dose for ID | 1 mSv/h (100mrem/h) |
| Dose rate measurement | 10 nSv/h to 900 mSv/h (1urem/h to 90 rem/h) |
| Neutron (standard configuration S100-1N2) | |
|---|---|
| Detector type | Li6F/ZnS |
| Detector size | 2.7 cm dia. X 11 cm (1" dia. X 4.3") |
| Capability | 252Cf 20,000 n/s @ 0.6 m/s @ 0.25 m (2 ft/s @ 10 in) |
| Energy range | 0.025 eV to 15MeV |
| Compliance | |
|---|---|
| Specifications | ANSI N42.34, ANSI N42.42, IEC 62327, IEC 62755 |
| Ingress protection | IP67 (IEC 60529) |
| Radiation safety | |
| Modes | Dosimeter / Mission Dose modes |
| Dose accuracy | Gamma dose accuracy of ± 10% for 137Cs |
| Neutron moderator | Inbuilt neutron moderator for handheld use enables ALARP (As Low As Reasonably Practicable) - Neutron model |
| Mechanical | |
|---|---|
| Dimensions | 29.2 x 11.8 x 11 cm (11.5 x 4.6 x 4.3 in) |
| Weight | 1.3 kg (2.9 lbs) |
| Electrical | |
| Battery | Integrated Li-ion |
| Run time | 14 hrs |
| Communications | Bluetooth, WiFi, USB-C |
| Display | 3.5 in. (8.9 cm) |
| Operational temperature | -20 to 50˚C (-4 to 122˚F) |
Downloads & support
VeriFinder S100 datasheet
Key features, Discovery Technology and full specification.
ServiceFarrWest Repair Depot
OEM-certified service and support on every product we deliver. When a repair or calibration falls outside our in-house scope, we coordinate directly with the manufacturer and manage the logistics end to end.
ConfigurationAsk about your setup
Questions about the standard S100-1N2 configuration, kit contents or how the S100 fits your radiological program? Our team will get back to you.
Symetrica VeriFinder™ at FarrWest
Compact gamma & neutron radiation identifier.
Handheld RIID, high-resolution radiation detection.
Rugged backpack gamma & optional neutron radiation detector.
Common questions
Does the VeriFinder S100 detect neutrons as well as gamma?
Does it need annual calibration?
How many isotopes can it identify?
Which standards does it meet, and what ingress protection does it have?
How is it powered and how do I get data off it?
Buying from FarrWest
BuyBoard & PCA vendor
FarrWest is a pre-approved vendor on BuyBoard and Purchasing Cooperative of America (PCA). Government agencies can buy on competitively-bid cooperative contracts, with no lengthy RFP.
ServiceService after the sale
OEM-certified service and support on every product we deliver: functional checks and certified calibration on the manufacturer’s required cycle, back in service in 48–72 hours typical.
Since 2004Woman-owned, HUB-certified
Serving Hazmat, Fire, Police, EMS, and Specialty Vehicle operations nationwide since 2004, with expert support, training, and service after the sale.
Search, identify, verify
Tell us about your mission and we will confirm configuration and kit contents for the Symetrica VeriFinder™ S100, then put a quote together.