Scentroid

Chemical Threat Detection System

The Scentroid TR9+ Sentry

Chemical Threat Detection System for Real-Time Hazard Identification

Scentroid’s chemical threat detection system is designed to identify airborne toxic chemicals, industrial hazards, and chemical threats in real time. Using advanced multi-sensor technology and mobile deployment platforms, it supports rapid response in emergency, industrial, and high-risk environments.

Equipped with up to 18 Sensors

The Sentry provides comprehensive detection of hazardous pollutants, chemical warfare agents (CWAs), and radiation threats within a single, unified system.

Military-Grade Chassis

IP67 rated, operationally ready for environments from -40°C to +50°C.

Secure Remote Data Visualization

All critical data is encrypted and securely transmitted to a super-rugged field tablet as well as to a centralized command center.

Integrated Audible and Visual Alarms

Crucial safety is ensured through built-in alarms that trigger instantly upon detection, providing an immediate warning to everyone in the vicinity, independently of the operator.

WHAT IS THE CHEMICAL THREAT DETECTION SYSTEM?

Our chemical threat detection system is a specialized monitoring solution used to detect, identify, and quantify hazardous airborne chemicals. These systems are essential in environments where exposure to toxic gases or chemical agents can pose serious health and safety risks. Scentroid’s system integrates advanced sensing technologies capable of detecting a wide range of compounds, including:

  • Toxic industrial chemicals (TICs)
  • Volatile organic compounds (VOCs)
  • Hazardous gases such as H₂S, NH₃, and NO₂
  • Chemical warfare agents and airborne contaminants

THE MODERN CHEMICAL THREAT DETECTION CHALLENGES

Airborne chemical Hazards are increasingly complex. Modern incidents rarely involve a single chemical threat. Military attacks, industrial sabotage, and infrastructure failures often produce complex airborne mixtures of toxic gases, particulates, and volatile compounds. Effective response requires rapid detection and identification of Chemical warfare, Toxic Industrial Chemicals, or Radiological Materials.

CHEMICAL WARFARE AGENT DETECTION

Blood agents, choking agents, nerve agents, and blister agents remain among the most dangerous airborne hazards due to their high toxicity and rapid physiological effects.

TOXIC INDUSTRIAL CHEMICAL DETECTION

Industrial facilities store and process large volumes of hazardous chemicals. Damage to refineries, fertilizer plants, semiconductor fabrication facilities, or chemical manufacturing plants can release dense toxic plumes that spread far beyond the point of origin.

RADIOLOGICAL
HAZARDS

Explosive dispersal of radioactive material (“dirty bombs”) presents a combined chemical and radiological monitoring challenge.
Sentry provides multi-sensor detection capabilities to support military reconnaissance, emergency response, and infrastructure protection operations.

INTEGRATED MULTI-SENSOR
CHEMICAL THREAT MONITORING

The Sentry Chemical Threat Detection System combines several complementary sensing technologies to provide broad-spectrum detection of airborne contaminants. Each sensor type is optimized for the detection of specific chemical classes while operating simultaneously to produce a unified environmental assessment. Supported sensing technologies include:

ELECTROCHEMICAL SENSORS (EC)

Highly selective sensors designed for detection of specific toxic gases including hydrogen sulfide, chlorine, ammonia, nitrogen dioxide, and hydrogen cyanide.

PHOTOIONIZATION DETECTION (PID)

Broadband volatile organic compound detection using ultraviolet ionization.

ELECTRO-POLYMER SENSORS

Specialized sensors designed to detect highly toxic hydride gases such as arsine.

THERMAL FRACTIONATION

PHOTOIONIZATION DETECTION (TF-PID) FOR CWA DETECTION

Selective chemical analysis capable of identifying nerve and blister agents at trace concentrations.

LASER PARTICLE COUNTERS

Optical monitoring of airborne particulate concentrations (PM1, PM2.5, PM10).

RADIOLOGICAL
DETECTION

Gamma radiation monitoring for detection of radiological dispersal events.

HAZARD MAP

Sentry Chemical Threat Detection System Explosion Map Tracking
Radiological Hazards

Detects ionizing radiation and airborne radioactive
contamination that may result from nuclear incidents,
industrial sources, or radiological threats

Chemical Warfare Agents

Designed to detect the presence of highly
toxic chemical warfare agents and related
compounds

Volatile Organic Compounds

Monitors a wide range of volatile organic
compounds emitted from fuels, solvents,
chemical production, and industrial
processes

Combustion Byproducts

Detects harmful gases produced during
combustion processes such as fires,
explosions, or industrial activity

Toxic Industrial Chemicals

Identifies and quantifies hazardous industrial
chemicals that may be released from
manufacturing facilities, transportation
accidents, or storage failures

Particulate Contamination

Measures airborne particulate matter including
dust, smoke, and fine aerosols that can impact
respiratory health and operational safety

DETECTION CAPABILITIES

CHEMICAL WARFARE AGENT DETECTION

Chemical warfare agents represent some of the most hazardous airborne threats due to their high toxicity and rapid physiological impact. Sentry supports the detection of several classes of chemical warfare agents through specialized sensor combinations and analytical techniques.

Blood Agents:

Blood agents interfere with cellular respiration and prevent oxygen utilization in the body. Examples include:

  • Hydrogen Cyanide (HCN)
  • Arsine (AsH3)

Detection is achieved using electrochemical and electro-polymer sensors capable of identifying these compounds at low concentrations.

Choking Agents

Choking agents damage respiratory tissue and impair lung function. Examples include:

  • Chlorine (Cl2)
  • Phosgene (COCl2)
  • Hydrogen Chloride (HCl)

Electrochemical sensors provide selective detection for these gases at trace and hazardous concentrations.

Nerve and Blister Agents

Agents such as Sarin, VX, and Mustard Gas require advanced detection approaches due to their chemical complexity.

Sentry supports detection through PID-based monitoring combined with GC-PID analysis and pre-concentration techniques.

This allows identification of trace concentrations of these highly toxic compounds.

INDUSTRIAL CHEMICAL HAZARDS

Refinery and Petrochemical Releases

Disaster may release large quantities of:

  • Hydrogen Sulfide (H2S)
  • Hydrogen Fluoride (HF)
  • Sulfur Dioxide (SO2)
  • Volatile organic hydrocarbons

Manufacturing Facilities

Disasters involving chemical manufacturing and plastics production facilities may release:

  • Styrene and Phosgene
  • Acrylonitrile
  • Hydrogen Cyanide

Metallurgic Operations and Mining

Metal processing and mineral extraction facilities can release:

  • Sulfur Dioxide (SO2)
  • Hydrogen Cyanide (HCN)
  • Carbon Monoxide (CO)

CRITICAL
INFRASTRUCTURE
MONITORING
PROTECTION

if attached, a wastewater treatment facility could create a hazardous environment

Water and Wastewater Treatment

Large volumes of Chlorine and Ammonia are stored. Damage to storage tanks can produce dense toxic gas clouds capable of affecting nearby communities.

Semiconductor manufacturing facilities may be targeted as they release harmful chemicals when destroyed

Semiconductor Manufacturing

Semiconductor fabrication facilities use extremely toxic Hydride gases including Arsine and Phosphine during wafer processing operations.

plastics and polymer manufacturing facility, organizing plastic rolls for shipping.

Plastics and Polymer Manufacturing

Production of polymers and plastics frequently involves chemicals such as Hydrogen Cyanide and Phosgene, both of which have historic use as chemical warfare agent

food processing and safety requirements for hazardous environments

Food Processing and Cold Storage

Industrial refrigeration systems often contain large volumes of anhydrous ammonia. Catastrophic release events can rapidly create hazardous conditions.

CONFIGURATIONS

RESPONDER

Detect Environmental Fallout

RESPONDER
CONFIGURATION 'A'

Post Attack / Disaster Response

DEFENDER

Tactical and Hazmat Teams

DEFENDER
CONFIGURATION 'B'

CWA Detection / Perimeter Security

RESPONDER SENSORS:

Photo-Ionization Detector

Detects the massive initial cloud of pollutants. Essential for mapping the “Hot Zone.”

Electro-Polymer

Arsine (AsH3), Hydrogen Sulfide (H2S), Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2)

Electro-Chemical

Hydrogen Cyanide (HCN), Phosgene (COCl2), Chlorine (Cl2), Hydrogen Fluoride (HF), Ammonia (NH3), Hydrogen Chloride (HCl), Carbon Monoxide (CO)

NDIR

Carbon Dioxide (CO2), LEL (Combustibles/Methane)

Gamma Sensor

High Energy Radiation

GPS

High-accuracy spatial mapping of all samples

DEFENDER SENSORS:

Thermal Fractionation (TP-PID)

Use of Selective thermal desorption to detect chemical warfare agents such as VX, Sarin and Mustard Gas in ppt level.

Electro-Polymer

Arsine (AsH3)

Electro-Chemical

Hydrogen Cyanide (HCN), Phosgene (COCl2), Chlorine (Cl2), Hydrogen Fluoride (HF)

Gamma Sensor

High energy radiation

GPS

High accuracy spatial mapping of all samples

SENTRY'S FIELD ADVANTAGE FOR CHEMICAL THREAT RESPONSE

ION Mobility Spectrometry (IMS)

Standard CWA detectors (IMS) confuse smoke, solvents, and other pollutants released in a disaster zone with actual Nerve Agents. The result is dangerous false positives, panic, and loss of operator trust.

Portable Gas Chromatography (GC-MS)

GC-MS can distinguish smoke from nerve agents, but it is complex, fragile, slow, and too expensive for widely-deployed field operations.

Sentry Defender (TF-PID)

provide high-fidelity detection of CWA threats in chaotic environments without the complexity, expense, or slower operation of GC-MS at a fraction of the cost.

CUSTOMIZABLE PLATFORM

Quadrupedal
Mounted
The Sentry can be mounted on quadrupedal robotic platforms to perform remote chemical monitoring in hazardous, unstable, or difficult-to-access environments.
Heavy Duty
Ground Vehicle
The Scentroid Sentry can be mounted on ground vehicles to enable real-time mobile chemical monitoring across large areas, allowing rapid assessment during patrols, emergency response, or environmental investigations.
Automobile
mounted
A customizable vehicle mounting system allows the Sentry to be securely installed on a wide range of vehicles while maintaining optimal airflow exposure and sensor performance during movement.
Urbanscanner
Mounted
The Scentroid Sentry integrates seamlessly with the Urbanscanner platform, enabling high-resolution mobile air quality mapping and chemical detection across urban environments.
DR2000
Drone-Based
When deployed with the DR2000 Flying Laboratory, the Sentry provides aerial chemical monitoring capabilities for rapid assessment of hazardous releases, industrial emissions, or inaccessible areas.
SL50 Scentinal
Compatible
The Sentry can integrate with Scentinal monitoring systems to expand detection capabilities while contributing advanced chemical threat analysis within established monitoring networks.
CTair
Compatible
The Sentry integrates with CTair monitoring networks while maintaining independent solar-powered operation and environmental awareness through an onboard ultrasonic weather station.
Equippable
Probe
An optional probe attachment allows the Sentry to perform targeted sampling directly from vents, pipes, confined spaces, or emission points for more accurate source detection.
hemical threat detection system used by emergency responders for toxic chemical incident assessment

MOBILE MONITORING IN OPERATIONAL ENVIRONMENTS

Sentry is designed for deployment in environments where rapid environmental intelligence is required to protect personnel and assess airborne hazards.

Typical operational deployments include:

  • Military Reconnaissance
  • Detection of chemical threats and toxic industrial hazards during military operations.
  • Disaster Response
  • Assessment of airborne hazards following industrial accidents, explosions, or natural disasters.
  • Infrastructure Protection
  • Monitoring sensitive facilities for accidental releases or malicious activity.
  • Hazardous Materials Response
  • Supporting emergency response teams with real-time air quality measurements during chemical incidents.

GAMMA RADIATION
DETECTION

Gamma radiation is invisible, high-energy radiation produced by radioactive materials, nuclear incidents, and radiological dispersal devices (RDDs). Because it penetrates most materials, exposure can occur without warning, making rapid detection critical during radiological emergencies.

How the Scentroid Sentry can help

The Sentry’s integrated gamma radiation sensors continuously monitor background levels and trigger alerts when abnormal radiation is detected. Real-time mapping enables responders to quickly identify hotspots, establish safe zones, and locate radioactive sources.

Key Operational Benefits

  • Real-time gamma radiation detection
  • Instant alerts above background levels
  • Radiation hotspot mapping
  • Combined radiological and chemical monitoring platform
Multi-sensor chemical threat detection system for detecting volatile organic compounds and toxic gases

SUPERIOR RUGGED CASING FOR ALL ENVIRONMENTAL NEEDS

IP67 Waterproof
and Dustproof

Injection-Molded
CN-1 Resin

Integrated
Water Filtration

Lockable
Latches

Rubberized
Handles

Steel Pin
Hinges

ENVIRONMENTAL INTELLIGENCE AND DATA INTEGRATION

The Sentry is a multi-sensor air monitoring system designed for rapid detection of chemical warfare agents, toxic industrial chemicals, combustion byproducts, and radiological hazards.

Sentry provides real-time situational awareness in environments where airborne contaminants pose immediate risk to personnel, infrastructure, and surrounding populations.

Scentroid SIMS3 being used for chemical threat detection
Scentroid SIMS3 report that can be generated to display information regarding chemical threat detections

SIMS3: AI DRIVEN PREDICTIVE INTELLIGENCE

The Sentry is a multi-sensor air monitoring system designed for rapid detection of chemical warfare agents, toxic industrial chemicals, combustion byproducts, and radiological hazards.

Sentry provides real-time plume monitoring, alerting, and full command center integration.

SPECIFICATIONS

Category

Specification

Enclosure

Military-grade ruggedized composite case (crush-resistant, shock-proof)

Dimensions (Estimated)

350 mm x 300 mm x 150 mm (13.7” x 11.8” x 5.9”)

Weight

3.5 kg (Defender) / 4.8 kg (Survivor, including TPD and Gamma modules)

Ingress Protection

IP67 (Case closed)

Operating Temperature

-40°C to +50°C (-40°F to 122°F)

Operating Humidity

5% to 95% Non-condensing (Active filtration available for high-humidity/water-spray environments).

Mounting Options

Man Portable (Shoulder strap/backpack), Vehicle-Mounted (Quick-Release), Stationary (Tripod/Wall mount)

Internal Battery

High-capacity, hot-swappable Lithium-Ion.

Runtime (Defender)

12+ hours continuous monitoring.

Runtime (Survivor)

8+ hours (Dependent on frequency of Thermal Fractionation flash-heating cycles).

External Power

12V-24V DC input for continuous vehicle power.

Auxiliary Power

Compatible with Scentroid rapid-deploy solar chargers for unattended perimeter sentry mode.

Local Interface

Bluetooth 5.0/LoRa connection to Ruggedized Operator Tablet. Provides range up to 10km 

Remote Transmission

Built-in Secure 4G/LTE cellular modem and Wi-Fi.

Central Command

Streams live encrypted telemetry, GPS, and sensor data to the SIMS3 Cloud Platform for swarm mapping and plume modeling.

Onboard Storage

32GB solid-state memory (Stores >5 years of continuous sensor logs).

Technology

Thermal Fractionation (Micro-Trap and 10.6 eV PID).

Heating Profile

Low Thermal Mass (LTM) heater. 30°C to 300°C in < 5 seconds (<1°C precision control).

Sample Phase

50 – 150 mL/min

Dry Purge

50 mL/min

Desorb / Analyze Phase

10 – 20 mL/min (Concentrated agent injection)

Sensitivity

Parts-Per-Trillion (PPT). 1000x enrichment factor.

Target Agent: Nerve

(G/V Series) Sarin (GB), Soman (GD), Tabun (GA), VX.

Target Agent: Blister

(Vesicants) Mustard Gas (HD), Lewisite.

False Alarm Mitigation

Multi-phase thermal stripping isolates heavy CWAs from light combustion background noise (Diesel, Kerosene, Plastics).

SENSOR SPECIFICATIONS

Sensor Technology

Target Gas

Hazard

Detection

Range

Resolution

PID (10.6 eV)

Broadband VOCs / Jet Fuel / Agents

General Safety

1 ppb

0 - 5000 ppm

10 ppb

Electro-Polymer

Arsine (AsH3)

Blood / Semiconductor

0.02 ppm

0 – 10 ppm

0.05 ppm

Electrochemical

Hydrogen Cyanide (HCN)

Blood

0.1 ppm

0 – 100 ppm

0.5 ppm

Electrochemical

Phosgene (CoCl2)

Choking

7 ppb

0 – 10 ppm

0.01 ppm

Electrochemical

Chlorine (Cl2)

Choking

0.05 ppm

0 – 200 ppm

0.1 ppm

Electrochemical

Hydrogen Fluoride (HF)

Acid

2 ppb

0 – 20 ppm

0.1 ppm

Electrochemical

Ammonia (NH3)

Corrosive

0.005 ppm

0 – 1,000 ppm

1 ppm

Electro-Polymer

Hydrogen Sulfide (H2S)

Lethal

0.01 ppm

0 – 500 ppm

0.1 ppm

Electro-Polymer

Sulfur Dioxide (SO2)

Combustion

0.01 ppm

0 – 200 ppm

0.1 ppm

Electrochemical

Hydrogen Chloride (HCl)

Acid

0.5 ppm

0 – 100 ppm

0.1 ppm

Electro-Polymer

Nitrogen Dioxide (NO2)

Combustion

0.005 ppm

0 – 50 ppm

0.1 ppm

Electro-Polymer

Carbon Monoxide (CO)

Fire Safety

0.01 ppm

0 – 2,000 ppm

1 ppm

Electrochemical

Oxygen (O2)

Asphyxiation

0.1% vol

0 – 30% Vol

0.1%

Catalytic / NDIR

LEL

Combustibles / Methane

100 ppm

0 – 100% LEL

1% LEL

NDIR

Carbon Dioxide (CO2)

Fire Safety

1 ppm

0 – 5% Vol

0.01%

Laser Particulate

PM1, PM2.5, PM10

Smoke / Soot

1 μg/m³

0 – 10,000 µg/m³

1 µg/m³

Scintillator

Gamma Radiation (Scentinal Only)

Radiation

0.01 mR/h

0 – 100 mR/h

0.01 mR/h

Thermal Fractionation - PID

Mustard Gas (HD)

Blister Agent

5 ppt (0.005 ppb)

5 ppt – 5,000 ppb

1 ppt

Thermal Fractionation - PID

VX

Nerve Agent

10 ppt (0.01 ppb)

10 ppt – 2,000 ppb

5 ppt

Thermal Fractionation - PID

Sarin (GB)

Nerve Agent

50 ppt (0.05 ppb)

50 ppt – 5,000 ppb

10 ppt

Thermal Fractionation - PID

Soman (GD)

Nerve Agent

50 ppt (0.05 ppb)

50 ppt – 5,000 ppb

10 ppt

CONTACT US

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