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Field-Grade Detection

Arson Investigation Equipment

Detect hydrocarbons, accelerants, petroleum volatiles, and combustible vapors with rugged arson investigation equipment built for fire investigators, fire marshals, HazMat teams, and emergency response professionals.

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Fire investigator using arson investigation equipment for hydrocarbon detection at a fire scene
Accelerant & Hydrocarbon Detection

Portable arson investigation equipment for the field.

The Grace Model 950-ASH is built for arson investigators, fire marshals, law enforcement, and hazardous vapor response teams who need fast, reliable hydrocarbon detection on scene.

Grace Model 950-ASH arson investigation equipment and hydrocarbon detector with carrying case
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Model 950-ASH Hydrocarbon Detector

The Model 950-ASH is a rugged, rechargeable hydrocarbon detector for petroleum accelerants, combustible gases, and trace hydrocarbons. A telescoping probe, dual sensitivity settings, and integrated UV and white LED lighting support fire scene investigation, evidence location, and hazardous vapor monitoring.

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How it works

From scene arrival to accelerant detection.

The 950-ASH supports the workflow fire investigators already use when evaluating possible ignition sources, suspicious residues, fuel containers, and areas where combustible vapors may be present.

1

Sweep the fire scene

Use the telescoping probe to sample air around debris, flooring, containers, vehicles, or suspected origin areas without disturbing potential evidence.

2

Detect hydrocarbons

The detector responds to petroleum accelerants, combustible gases, and trace hydrocarbons. Dual sensitivity modes help confirm hot spots and separate background readings from areas of interest.

3

Support evidence collection

Integrated UV and white LED lighting help investigators inspect charred surfaces, dark debris fields, and low-light scene areas while sampling.

Arson Statistics

Arson investigations require reliable scene information.

Arson cases can involve property damage, complex evidence collection, and challenging scene conditions. Fast hydrocarbon and accelerant detection helps investigators identify areas that may require closer inspection.

204,976

Arson offenses from 2022 to 2024

The FBI reported 204,976 arson offenses from 2022 through 2024, showing the continued need for fire scene investigation tools.

42.2%

Reported arsons involved structures

FBI data from 2019 showed that more than 42% of arson offenses involved structures such as residential, storage, and public buildings.

$16,371

Average dollar loss per arson

The FBI reported the average dollar loss per arson offense at $16,371 in its 2019 Crime in the United States arson data.

Sources: FBI Arson Offenses 2015–2024 Report, FBI 2019 Arson Statistics, and NIJ Fire and Arson Scene Evidence Guide.

Built for the field

Arson investigation tools for fire, law enforcement, and HazMat response.

From post-fire origin-and-cause investigation to hazardous vapor surveys, the 950-ASH is used anywhere responders need portable hydrocarbon detection equipment in unpredictable environments.

The National Institute of Justice emphasizes the importance of protecting fire and arson scene evidence from contamination or destruction. Portable detection equipment can support that process by helping investigators identify areas that may require careful sampling and documentation.

Arson Investigation Fire Marshals HazMat Response Industrial Safety Insurance Investigation Law Enforcement Environmental Assessment

Why investigators choose Grace

  • Detects petroleum accelerants and combustible gases
  • Telescoping probe for safe, targeted sampling
  • Dual sensitivity for confirmation and isolation
  • Onboard UV and white LED scene lighting
  • Rechargeable, field-ready power system
  • Built for rugged use in active scene conditions
Fire Scene Evidence

Support better fire scene investigation workflows.

Fire and arson investigations depend on careful scene evaluation, documentation, and evidence preservation. The 950-ASH gives investigators a portable way to detect hydrocarbons and combustible vapors while working through origin areas, debris fields, and suspicious burn patterns.

NIJ Fire & Arson Scene Evidence Guide → FBI Arson Statistics → FBI Arson Offenses Report →
Quick answers

Common questions about arson investigation equipment.

Answers for investigators, fire marshals, safety officers, and agencies evaluating accelerant and hydrocarbon detection equipment.

What can the 950-ASH detect?
The 950-ASH is designed to detect petroleum accelerants, combustible gases, and trace hydrocarbons commonly encountered during arson investigation and hazardous vapor response. Dual sensitivity settings help users confirm hot spots and isolate background readings.
Is the 950-ASH used for arson investigation?
Yes. The 950-ASH is built for arson investigators, fire marshals, law enforcement, and emergency response teams that need portable hydrocarbon detection equipment during fire scene evaluation.
Can it be used during overhaul or post-fire investigation?
Yes. The rugged design, rechargeable power system, and telescoping probe support sampling around debris, flooring, containers, vehicles, and suspected origin areas during post-fire investigation.
What lighting is built into the detector?
The 950-ASH includes integrated UV and white LED lighting on the probe, helping investigators inspect charred surfaces, debris, and low-light scene areas while sampling.
Does the detector require calibration?
Routine calibration is recommended to maintain detection accuracy. Contact Grace Industries for current calibration schedules, service options, and recommended maintenance practices.
Who typically uses hydrocarbon detection equipment?
Hydrocarbon detection equipment is commonly used by fire investigators, fire marshals, HazMat teams, law enforcement, insurance investigators, and industrial safety professionals.