Electronic Sensor Technology, Inc. develops, manufactures, and sells electronic devices used for vapor analysis. The company offers zNose, an electronic nose designed for various industry applications, which can detect odors and chemical vapors produced by explosives, chemicals, and biological weapons, as well as used for identifying hazardous industrial materials, improvised explosives, and flammable materials. Its product is used in the homeland security, chemical and petrochemical, environmental, life science, and food and beverage industries. The company also provides spare parts, such as columns, saw detectors, and traps; and accessories, including rugged shipping case, battery assemblies, battery chargers, DC/AC inverters, desorbers, heaters, remote samplers, sample injectors, system controllers, user tool kits, and water traps, as well as support and validation services. Electronic Sensor Technology offers products through online stores. The company was incorporated in 1995 and is based in Newbury Park, California. Electronic Sensor Technology, Inc. is a subsidiary of Halfmoon Bay Capital Limited.