For over 60 years, Block Engineering has been a leader in chemical detection and analysis technology. Block's line of laser-based standoff sensors will quickly and accurately detect and identify a wide range of chemical threats over varying contract-free distances. Block sensors are designed to protect transportation hubs, mass gathering areas, and other critical infrastructure sites from Chemical Warfare Agents (CWAs), Toxic Industrial Chemicals/Materials (TICs/TIMs), explosives, and other hazardous chemicals.