Specifications include, but are not limited to: 3.1.1 Electronic Hydrocarbon Detection Devices. 3.1.1.1 Must have audio and visual indication of accelerants and gases and/or vapors detection. 3.1.1.2 Electronic Hydrocarbon Detection Devices must be able to detect approximately 125 toxic/combustible gases and/or vapors, and must including at a minimum: 3.1.1.2.1 Methane 3.1.1.2.2 Ethane 3.1.1.2.3 Propane 3.1.1.2.4 Butane 3.1.1.2.5 Pentane 3.1.1.2.6 Hexane 3.1.1.2.7 Heptane 3.1.1.2.8 Octane 3.1.1.2.9 Decane 3.1.1.2.10 Petroleum Ether 3.1.1.2.11 Petroleum Benzine 3.1.1.2.12 Gasoline 3.1.1.2.13 Kerosene 3.1.1.2.14 Petroleum Naphtha 3.1.1.2.15 Acetylene 3.1.1.2.16 Ethylene 3.1.1.2.17 Propylene 3.1.1.2.18 Butadiene 3.1.1.2.19 Butylene 3.1.1.2.20 Benzene 3.1.1.2.21 Toluene 3.1.1.2.22 Xylem 3.1.1.2.23 m-Xylene 3.1.1.3 Electronic Hydrocarbon Detection Devices must have a High-range switch that allows for the detection of trace levels of hydrocarbons or accelerants. 3.1.1.4 Electronic Hydrocarbon Detection Devices must have a Low-range switch that can be used when an area of concern has high concentrations of hydrocarbons. In low range, the sensitivity is reduced to assist in pinpointing hydrocarbon / accelerant source. 3.1.1.5 Electronic Hydrocarbon Detection Devices must have illuminating ultraviolet and white LEDs which further assist the investigator in locating accelerants or other evidence in situations where detection in low visibility environments becomes difficult. 3.1.1.6 Electronic Hydrocarbon Detection Devices must have be readily accessible to use with UV light. This will not only be used to assist in identifying the presence of accelerants but also in rapidly locating accelerant residues and assists in locating the point of origin of the fire.