Model 950-ASH-D Accelerant and Hydrocarbon Detector

The Model 950-ASH-D Accelerant and Hydrocarbon Detector is a rugged, battery-powered instrument designed to help investigators detect hydrocarbons, petroleum-based accelerants, volatile gases, and combustible vapors in demanding field conditions. Engineered for reliability and ease of use, the 950-ASH supports arson investigations, gas leak detection, landfill outgassing surveys, storage tank leak inspections, and other hydrocarbon detection applications. 

Equipped with adjustable sensitivity modes, integrated illumination, and a telescoping probe, the Model 950-ASH-D allows investigators to locate trace amounts of accelerants or pinpoint concentrated sources with speed and precision—even in low-light or debris-filled environments.

Unlike other detectors, the Model 950-ASH-D never requires calibration. It is a relative-response instrument that reports comparative concentration rather than an absolute number, so there is no reference to calibrate against and no calibration required. What it needs instead is a baseline set by the operator before use.

Key Features

• Audible and visual indications for the detection of hydrocarbons and combustible gases

• Adjustable sensitivity modes for locating trace levels or isolating high-concentration sources

• Rugged construction with a rechargeable lithium-ion battery for extended field use

• Multi-mode digital display

• Telescoping probe providing over 40 inches of extended reach

• Integrated ultraviolet (UV) LEDs for visible fluorescence detection

• White LEDs for improved general visibility in low-light conditions

• Mute function for discreet investigations

• Purge feature for rapid sensor recovery after exposure to high concentrations

• No calibration required

• Charger and carrying case included

Detectable Hydrocarbons and Accelerants

The Model 950-ASH can detect a wide range of common hydrocarbons and accelerants, including but not limited to:

• Fuels: Gasoline, Diesel, Kerosene

• Hydrocarbons and derivatives: Methane, Ethane, Propane, Butane, Pentane, Hexane, Heptane, Octane

• Aromatics and industrial compounds: Benzene, Toluene, Xylene, Propylene, Ethylene Oxide

Specifications

• Dimensions: 3.25" W × 3.25" D × 19.5" L (extends to 45")

• Weight: 2 lbs 2 oz (960 g)

• Sensor Type: Solid-state semiconductor

• Battery: Rechargeable lithium-ion

• Operating Time: Up to 7–8 hours continuous use

• Charging Options: USB (+5V), 120VAC wall charger, or 12V vehicle charger

• Charging Time: Approximately 6–8 hours from low battery

• Lighting: White LEDs and ultraviolet (UV) LEDs

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